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We are a small British company dedicated to making cycling fun for children. We believe that the lighter the bike, the easier it is for children to learn to ride, and to enjoy it more as they progress. Many kids' bikes on the market weigh nearly as much as the child!
So we set about re-designing kids' bikes, creating a light but strong aluminium frame, and hand-picking components that offer a high performance without compromising the weight.
Ourbikes are now also much easier to pedal due to a unique crank design from the renowned bicycle engineer Dimitris Katsanis (of Team GB Olympic fame). The new design reduces the Q-factor (the space between the pedals), allowing children to push more directly down when cycling, so converting more of their energy into motion. Only Frog applies this level of rigour to the design of kids' bikes.
We sell bikes through independent bike stores throughout UK and mainland Europe, in Canada, South Africa, Hong Kong, and Japan, and directly to customers worldwide through this site. In fact, in November 2015 we won the Export Business of the Year award at the Start-ups Awards!
The founders, Jerry and Shelley, are a couple who have 2 small children of their own – both keen cyclists. So they know something about what motivates children to get on their bikes! Since the first prototype arrived, the bikes have always been robustly tested by the children and all their friends.
Our environment is an important factor in all the decisions we make as a business, from recycled packaging to generating our own electricity in the office. We have also developed the Leapfrog programme for second hand Frogs in the UK... Anything to keep old bikes out of land-fill.
So, what does the future hold? Well, we recently launched new ranges of super-light road and trackbikes which are available through our stockists. We have an exciting partnership with Team Sky, offering a complete range of lightweight kids' bikes and accessories in the iconic Team Sky branding. And new for 2016, we have launched a Union Jack range with Joanna Rowsell.
We are constantly working on developments and improvements to our bikes, in line with ongoing scientific research at Brunel University, so that our bikes continue to lead the market in innovation and comfort for children.
From the summer of 2016 onwards, we will be assembling bikes in UK, in our own factory in south Wales. This is a really exciting development for Frog, and one which will help us be more responsive to the market, reduce our environmental footprint, and create jobs in the local economy.
The First Pedal Frog 40 is a great value bike for 3 to 4 year olds with an average inside leg of 40cm.
One of the biggest temptations is to buy a bike your child will 'grow into'. However, this is likely to have the opposite effect and put your child off bikes and cycling altogether! The data obtained during our child specific frame design research has been used to produce a helpful sizing app. Ask in your local store about our FrogFit app to get the best sized bike for your child.
Another common mistake is to purchase a budget bike but these models are often as heavy as the child and leads to frustration at not being able to cycle. Our lightweight bikes are a great confidence booster and can also be used as a balance bike for a taller child by removing the pedals.
Wheel Size: 14" inch
Why buy a Frog 40?
- Lightweight but sturdy frame, making the bike easy to manoeuvre for your child and easy for you to carry
- Tektro brakes with small, easy to reach brake levers. Better control means improved confidence for young riders
- Patented Frog cranks for easier pedalling reduces the distance between the pedals increasing efficiency and comfort
- Free 5 year warranty on frame and forks
- Reflectors, mudguard and bell included
Detailed spec
Approx Age
3-4
Wheel Size
14"
Bike Weight
6.46 kg
Frame
6061 T6 heat treated aluminium alloy, seat tube 7" (180mm)
Fork
6061 T6 heat treated aluminium alloy
Front Hub
Quando, aluminium, sealed hub, 5mm allen bolt internal fixing, 16 hole
Rear Hub
Quando, aluminium, sealed hub, standard freewheel thread and 5mm allen bolt internal fixing, 16 hole, drive side chain tensioner.
Cassette/Free wheel
ATA, standard ISO thread, 18t, 4 prong removal, chrome plated
Rim
Aluminium, 14"x1.5", double wall, with machined braking surface
Seat Clamp
Aluminium, 5mm allen key fixing
Headset
Neco, 1"1/8 , threadless, safety steering stop, Frog Bikes top cap
Stem
Aluminium, 1"1/8, 38mm, 4 bolt clamp
Grips/Bar tape
Frog Bikes specific, lock on, slim grips
Brakes (F&R)
Tektro C310, aluminium, linear pull
Tyres
Kenda K1153, 14"x1.75", MTB, (ETRTO/ISO: 47-254)
Mudguards
Resin, black
A
Wheelbase (mm)
664
B
Seatube Angle (Degrees)
75
C
Head tube angle (degrees)
71
D
Effective top tube (mm)
340
E
Head tube length (mm)
75
F
Chain stay length (mm)
276
G
Seat tube Length
170
H
BB to Floor (mm)
165
The First Pedal Frog 40 is a great value bike for 3 to 4 year olds with an average inside leg of 40cm.
One of the biggest temptations is to buy a bike your child will 'grow into'. However, this is likely to have the opposite effect and put your child off bikes and cycling altogether! The data obtained during our child specific frame design research has been used to produce a helpful sizing app. Ask in your local store about our FrogFit app to get the best sized bike for your child.
Another common mistake is to purchase a budget bike but these models are often as heavy as the child and leads to frustration at not being able to cycle. Our lightweight bikes are a great confidence booster and can also be used as a balance bike for a taller child by removing the pedals.
Wheel Size: 14" inch
Why buy a Frog 40?
- Lightweight but sturdy frame, making the bike easy to manoeuvre for your child and easy for you to carry
- Tektro brakes with small, easy to reach brake levers. Better control means improved confidence for young riders
- Patented Frog cranks for easier pedalling reduces the distance between the pedals increasing efficiency and comfort
- Free 5 year warranty on frame and forks
- Reflectors, mudguard and bell included
Detailed spec
Approx Age
3-4
Wheel Size
14"
Bike Weight
6.46 kg
Frame
6061 T6 heat treated aluminium alloy, seat tube 7" (180mm)
Fork
6061 T6 heat treated aluminium alloy
Front Hub
Quando, aluminium, sealed hub, 5mm allen bolt internal fixing, 16 hole
Rear Hub
Quando, aluminium, sealed hub, standard freewheel thread and 5mm allen bolt internal fixing, 16 hole, drive side chain tensioner.
Cassette/Free wheel
ATA, standard ISO thread, 18t, 4 prong removal, chrome plated
Rim
Aluminium, 14"x1.5", double wall, with machined braking surface
Seat Clamp
Aluminium, 5mm allen key fixing
Headset
Neco, 1"1/8 , threadless, safety steering stop, Frog Bikes top cap
Stem
Aluminium, 1"1/8, 38mm, 4 bolt clamp
Grips/Bar tape
Frog Bikes specific, lock on, slim grips
Brakes (F&R)
Tektro C310, aluminium, linear pull
Tyres
Kenda K1153, 14"x1.75", MTB, (ETRTO/ISO: 47-254)
Mudguards
Resin, black
A
Wheelbase (mm)
664
B
Seatube Angle (Degrees)
75
C
Head tube angle (degrees)
71
D
Effective top tube (mm)
340
E
Head tube length (mm)
75
F
Chain stay length (mm)
276
G
Seat tube Length
170
H
BB to Floor (mm)
165
The First Pedal Frog 40 is a great value bike for 3 to 4 year olds with an average inside leg of 40cm.
One of the biggest temptations is to buy a bike your child will 'grow into'. However, this is likely to have the opposite effect and put your child off bikes and cycling altogether! The data obtained during our child specific frame design research has been used to produce a helpful sizing app. Ask in your local store about our FrogFit app to get the best sized bike for your child.
Another common mistake is to purchase a budget bike but these models are often as heavy as the child and leads to frustration at not being able to cycle. Our lightweight bikes are a great confidence booster and can also be used as a balance bike for a taller child by removing the pedals.
Wheel Size: 14" inch
Why buy a Frog 40?
- Lightweight but sturdy frame, making the bike easy to manoeuvre for your child and easy for you to carry
- Tektro brakes with small, easy to reach brake levers. Better control means improved confidence for young riders
- Patented Frog cranks for easier pedalling reduces the distance between the pedals increasing efficiency and comfort
- Free 5 year warranty on frame and forks
- Reflectors, mudguard and bell included
Detailed spec
Approx Age
3-4
Wheel Size
14"
Bike Weight
6.46 kg
Frame
6061 T6 heat treated aluminium alloy, seat tube 7" (180mm)
Fork
6061 T6 heat treated aluminium alloy
Front Hub
Quando, aluminium, sealed hub, 5mm allen bolt internal fixing, 16 hole
Rear Hub
Quando, aluminium, sealed hub, standard freewheel thread and 5mm allen bolt internal fixing, 16 hole, drive side chain tensioner.
Cassette/Free wheel
ATA, standard ISO thread, 18t, 4 prong removal, chrome plated
Rim
Aluminium, 14"x1.5", double wall, with machined braking surface
Seat Clamp
Aluminium, 5mm allen key fixing
Headset
Neco, 1"1/8 , threadless, safety steering stop, Frog Bikes top cap
Stem
Aluminium, 1"1/8, 38mm, 4 bolt clamp
Grips/Bar tape
Frog Bikes specific, lock on, slim grips
Brakes (F&R)
Tektro C310, aluminium, linear pull
Tyres
Kenda K1153, 14"x1.75", MTB, (ETRTO/ISO: 47-254)
Mudguards
Resin, black
A
Wheelbase (mm)
664
B
Seatube Angle (Degrees)
75
C
Head tube angle (degrees)
71
D
Effective top tube (mm)
340
E
Head tube length (mm)
75
F
Chain stay length (mm)
276
G
Seat tube Length
170
H
BB to Floor (mm)
165
The First Pedal Frog 40 is a great value bike for 3 to 4 year olds with an average inside leg of 40cm.
One of the biggest temptations is to buy a bike your child will 'grow into'. However, this is likely to have the opposite effect and put your child off bikes and cycling altogether! The data obtained during our child specific frame design research has been used to produce a helpful sizing app. Ask in your local store about our FrogFit app to get the best sized bike for your child.
Another common mistake is to purchase a budget bike but these models are often as heavy as the child and leads to frustration at not being able to cycle. Our lightweight bikes are a great confidence booster and can also be used as a balance bike for a taller child by removing the pedals.
Wheel Size: 14" inch
Why buy a Frog 40?
- Lightweight but sturdy frame, making the bike easy to manoeuvre for your child and easy for you to carry
- Tektro brakes with small, easy to reach brake levers. Better control means improved confidence for young riders
- Patented Frog cranks for easier pedalling reduces the distance between the pedals increasing efficiency and comfort
- Free 5 year warranty on frame and forks
- Reflectors, mudguard and bell included
Detailed spec
Approx Age
3-4
Wheel Size
14"
Bike Weight
6.46 kg
Frame
6061 T6 heat treated aluminium alloy, seat tube 7" (180mm)
Fork
6061 T6 heat treated aluminium alloy
Front Hub
Quando, aluminium, sealed hub, 5mm allen bolt internal fixing, 16 hole
Rear Hub
Quando, aluminium, sealed hub, standard freewheel thread and 5mm allen bolt internal fixing, 16 hole, drive side chain tensioner.
Cassette/Free wheel
ATA, standard ISO thread, 18t, 4 prong removal, chrome plated
Rim
Aluminium, 14"x1.5", double wall, with machined braking surface
Seat Clamp
Aluminium, 5mm allen key fixing
Headset
Neco, 1"1/8 , threadless, safety steering stop, Frog Bikes top cap
Stem
Aluminium, 1"1/8, 38mm, 4 bolt clamp
Grips/Bar tape
Frog Bikes specific, lock on, slim grips
Brakes (F&R)
Tektro C310, aluminium, linear pull
Tyres
Kenda K1153, 14"x1.75", MTB, (ETRTO/ISO: 47-254)
Mudguards
Resin, black
A
Wheelbase (mm)
664
B
Seatube Angle (Degrees)
75
C
Head tube angle (degrees)
71
D
Effective top tube (mm)
340
E
Head tube length (mm)
75
F
Chain stay length (mm)
276
G
Seat tube Length
170
H
BB to Floor (mm)
165
The First Pedal Frog 40 is a great value bike for 3 to 4 year olds with an average inside leg of 40cm.
One of the biggest temptations is to buy a bike your child will 'grow into'. However, this is likely to have the opposite effect and put your child off bikes and cycling altogether! The data obtained during our child specific frame design research has been used to produce a helpful sizing app. Ask in your local store about our FrogFit app to get the best sized bike for your child.
Another common mistake is to purchase a budget bike but these models are often as heavy as the child and leads to frustration at not being able to cycle. Our lightweight bikes are a great confidence booster and can also be used as a balance bike for a taller child by removing the pedals.
Wheel Size: 14" inch
Why buy a Frog 40?
- Lightweight but sturdy frame, making the bike easy to manoeuvre for your child and easy for you to carry
- Tektro brakes with small, easy to reach brake levers. Better control means improved confidence for young riders
- Patented Frog cranks for easier pedalling reduces the distance between the pedals increasing efficiency and comfort
- Free 5 year warranty on frame and forks
- Reflectors, mudguard and bell included
Detailed spec
Approx Age
3-4
Wheel Size
14"
Bike Weight
6.46 kg
Frame
6061 T6 heat treated aluminium alloy, seat tube 7" (180mm)
Fork
6061 T6 heat treated aluminium alloy
Front Hub
Quando, aluminium, sealed hub, 5mm allen bolt internal fixing, 16 hole
Rear Hub
Quando, aluminium, sealed hub, standard freewheel thread and 5mm allen bolt internal fixing, 16 hole, drive side chain tensioner.
Cassette/Free wheel
ATA, standard ISO thread, 18t, 4 prong removal, chrome plated
Rim
Aluminium, 14"x1.5", double wall, with machined braking surface
Seat Clamp
Aluminium, 5mm allen key fixing
Headset
Neco, 1"1/8 , threadless, safety steering stop, Frog Bikes top cap
Stem
Aluminium, 1"1/8, 38mm, 4 bolt clamp
Grips/Bar tape
Frog Bikes specific, lock on, slim grips
Brakes (F&R)
Tektro C310, aluminium, linear pull
Tyres
Kenda K1153, 14"x1.75", MTB, (ETRTO/ISO: 47-254)
Mudguards
Resin, black
A
Wheelbase (mm)
664
B
Seatube Angle (Degrees)
75
C
Head tube angle (degrees)
71
D
Effective top tube (mm)
340
E
Head tube length (mm)
75
F
Chain stay length (mm)
276
G
Seat tube Length
170
H
BB to Floor (mm)
165
The First Pedal Frog 40 is a great value bike for 3 to 4 year olds with an average inside leg of 40cm.
One of the biggest temptations is to buy a bike your child will 'grow into'. However, this is likely to have the opposite effect and put your child off bikes and cycling altogether! The data obtained during our child specific frame design research has been used to produce a helpful sizing app. Ask in your local store about our FrogFit app to get the best sized bike for your child.
Another common mistake is to purchase a budget bike but these models are often as heavy as the child and leads to frustration at not being able to cycle. Our lightweight bikes are a great confidence booster and can also be used as a balance bike for a taller child by removing the pedals.
Wheel Size: 14" inch
Why buy a Frog 40?
- Lightweight but sturdy frame, making the bike easy to manoeuvre for your child and easy for you to carry
- Tektro brakes with small, easy to reach brake levers. Better control means improved confidence for young riders
- Patented Frog cranks for easier pedalling reduces the distance between the pedals increasing efficiency and comfort
- Free 5 year warranty on frame and forks
- Reflectors, mudguard and bell included
Detailed spec
Approx Age
3-4
Wheel Size
14"
Bike Weight
6.46 kg
Frame
6061 T6 heat treated aluminium alloy, seat tube 7" (180mm)
Fork
6061 T6 heat treated aluminium alloy
Front Hub
Quando, aluminium, sealed hub, 5mm allen bolt internal fixing, 16 hole
Rear Hub
Quando, aluminium, sealed hub, standard freewheel thread and 5mm allen bolt internal fixing, 16 hole, drive side chain tensioner.
Cassette/Free wheel
ATA, standard ISO thread, 18t, 4 prong removal, chrome plated
Rim
Aluminium, 14"x1.5", double wall, with machined braking surface
Seat Clamp
Aluminium, 5mm allen key fixing
Headset
Neco, 1"1/8 , threadless, safety steering stop, Frog Bikes top cap
Stem
Aluminium, 1"1/8, 38mm, 4 bolt clamp
Grips/Bar tape
Frog Bikes specific, lock on, slim grips
Brakes (F&R)
Tektro C310, aluminium, linear pull
Tyres
Kenda K1153, 14"x1.75", MTB, (ETRTO/ISO: 47-254)
Mudguards
Resin, black
A
Wheelbase (mm)
664
B
Seatube Angle (Degrees)
75
C
Head tube angle (degrees)
71
D
Effective top tube (mm)
340
E
Head tube length (mm)
75
F
Chain stay length (mm)
276
G
Seat tube Length
170
H
BB to Floor (mm)
165
The First Pedal Frog 40 is a great value bike for 3 to 4 year olds with an average inside leg of 40cm.
One of the biggest temptations is to buy a bike your child will 'grow into'. However, this is likely to have the opposite effect and put your child off bikes and cycling altogether! The data obtained during our child specific frame design research has been used to produce a helpful sizing app. Ask in your local store about our FrogFit app to get the best sized bike for your child.
Another common mistake is to purchase a budget bike but these models are often as heavy as the child and leads to frustration at not being able to cycle. Our lightweight bikes are a great confidence booster and can also be used as a balance bike for a taller child by removing the pedals.
Wheel Size: 14" inch
Why buy a Frog 40?
- Lightweight but sturdy frame, making the bike easy to manoeuvre for your child and easy for you to carry
- Tektro brakes with small, easy to reach brake levers. Better control means improved confidence for young riders
- Patented Frog cranks for easier pedalling reduces the distance between the pedals increasing efficiency and comfort
- Free 5 year warranty on frame and forks
- Reflectors, mudguard and bell included
Detailed spec
Approx Age
3-4
Wheel Size
14"
Bike Weight
6.46 kg
Frame
6061 T6 heat treated aluminium alloy, seat tube 7" (180mm)
Fork
6061 T6 heat treated aluminium alloy
Front Hub
Quando, aluminium, sealed hub, 5mm allen bolt internal fixing, 16 hole
Rear Hub
Quando, aluminium, sealed hub, standard freewheel thread and 5mm allen bolt internal fixing, 16 hole, drive side chain tensioner.
Cassette/Free wheel
ATA, standard ISO thread, 18t, 4 prong removal, chrome plated
Rim
Aluminium, 14"x1.5", double wall, with machined braking surface
Seat Clamp
Aluminium, 5mm allen key fixing
Headset
Neco, 1"1/8 , threadless, safety steering stop, Frog Bikes top cap
Stem
Aluminium, 1"1/8, 38mm, 4 bolt clamp
Grips/Bar tape
Frog Bikes specific, lock on, slim grips
Brakes (F&R)
Tektro C310, aluminium, linear pull
Tyres
Kenda K1153, 14"x1.75", MTB, (ETRTO/ISO: 47-254)
Mudguards
Resin, black
A
Wheelbase (mm)
664
B
Seatube Angle (Degrees)
75
C
Head tube angle (degrees)
71
D
Effective top tube (mm)
340
E
Head tube length (mm)
75
F
Chain stay length (mm)
276
G
Seat tube Length
170
H
BB to Floor (mm)
165
The First Pedal Frog 40 is a great value bike for 3 to 4 year olds with an average inside leg of 40cm.
One of the biggest temptations is to buy a bike your child will 'grow into'. However, this is likely to have the opposite effect and put your child off bikes and cycling altogether! The data obtained during our child specific frame design research has been used to produce a helpful sizing app. Ask in your local store about our FrogFit app to get the best sized bike for your child.
Another common mistake is to purchase a budget bike but these models are often as heavy as the child and leads to frustration at not being able to cycle. Our lightweight bikes are a great confidence booster and can also be used as a balance bike for a taller child by removing the pedals.
Wheel Size: 14" inch
Why buy a Frog 40?
- Lightweight but sturdy frame, making the bike easy to manoeuvre for your child and easy for you to carry
- Tektro brakes with small, easy to reach brake levers. Better control means improved confidence for young riders
- Patented Frog cranks for easier pedalling reduces the distance between the pedals increasing efficiency and comfort
- Free 5 year warranty on frame and forks
- Reflectors, mudguard and bell included
Detailed spec
Approx Age
3-4
Wheel Size
14"
Bike Weight
6.46 kg
Frame
6061 T6 heat treated aluminium alloy, seat tube 7" (180mm)
Fork
6061 T6 heat treated aluminium alloy
Front Hub
Quando, aluminium, sealed hub, 5mm allen bolt internal fixing, 16 hole
Rear Hub
Quando, aluminium, sealed hub, standard freewheel thread and 5mm allen bolt internal fixing, 16 hole, drive side chain tensioner.
Cassette/Free wheel
ATA, standard ISO thread, 18t, 4 prong removal, chrome plated
Rim
Aluminium, 14"x1.5", double wall, with machined braking surface
Seat Clamp
Aluminium, 5mm allen key fixing
Headset
Neco, 1"1/8 , threadless, safety steering stop, Frog Bikes top cap
Stem
Aluminium, 1"1/8, 38mm, 4 bolt clamp
Grips/Bar tape
Frog Bikes specific, lock on, slim grips
Brakes (F&R)
Tektro C310, aluminium, linear pull
Tyres
Kenda K1153, 14"x1.75", MTB, (ETRTO/ISO: 47-254)
Mudguards
Resin, black
A
Wheelbase (mm)
664
B
Seatube Angle (Degrees)
75
C
Head tube angle (degrees)
71
D
Effective top tube (mm)
340
E
Head tube length (mm)
75
F
Chain stay length (mm)
276
G
Seat tube Length
170
H
BB to Floor (mm)
165
The First Pedal 44 is the first in our new and improved frame range. It is the perfect, great value bike for 4 to 5 year olds with an average inside leg of 44cm
We have reduced the weight of this model by using smaller tube diameters and thinner tube walls. The Frog 44 weighs only 6.39kg. Along with this weight saving, we have lowered the bottom bracket to achieve a more ergonomic position on the bike.
One of the biggest temptations is to buy a bike your child will 'grow into'. However, this is likely to have the opposite effect and put your child off bikes and cycling altogether! This new frame has a longer steerer tube which includes a 10mm spacer ontop of the stem. This allows room to move the handlebars into a higher position as they grow.
Another common mistake is to purchase a budget bike but these models are often as heavy as the child and leads to tears and frustration at not being able to cycle. Our lightweight bikes are a great confidence booster and can also be used as a balance bike for a taller child by removing the pedals.
Wheel Size:16" inch
Why buy a Frog 44?
- Lightweight but sturdy frame making the bike easy to manoeuvre for your child and easy for you to carry
- Tektro brakes with small, easy to reach brake levers. Better control means improved confidence for young riders
- Patented Frog cranks for easier pedalling reduces the distance between the pedals increasing efficiency and comfort
- Free 5 year warranty on frame and forks
- Reflectors, mudguard and bell included
Approx Age
4 - 5
Wheel Size
16"
Bike Weight
6.39kg
Frame
6061 T6 heat treated Aluminium alloy, seat tube 9" (230mm)
Fork
6061 T6 heat treated aluminium alloy
Front Hub
Quando, aluminium, sealed hub, 5mm allen bolt internal fixing, 16 hole
Rear Hub
Quando, aluminium, sealed hub, standard freewheel thread and 5mm allen bolt internal fixing, 16 hole, drive side chain tensioner
Cassette/Free wheel
ATA, standard ISO thread, 18t, 4 prong removal, chrome plated/brown
Rim
Aluminium, 16"x1.5", double wall, with machined braking surface
Seat Clamp
Aluminium, 5mm allen key fixing
Headset
Neco, 1"1/8 , threadless, safety steering stop, Frog Bikes top cap
Stem
Aluminium, 1"1/8, 38mm, 4 bolt clamp
Grips/Bar tape
Frog Bikes specific, lock on, slim grips
Brakes (F&R)
Tektro C310, aluminium, linear pull
Tyres
Kenda K1047, 16"x1.5", Hybrid, (ETRTO/ISO: 38-305)
Mudguards
Resin, black
Accessories box
Bell, bike reflectors white/red, wheel reflectors orange/white, paint plasters (excl. Union Jack- touch up paint supplied), frame protector patches
Crank set / Chainring
Frog Bikes Patented, 89mm, Aluminium straight arm cranks, 32T chainring, Black
Bottom Bracket
Neco, square taper, 68/107.5, cartridge bearings
Pedals
Resin platform, 9/16" thread, w/reflectors
Chain
KMC, single speed
Handlebar
Aluminium, 30mm riser bar, 440mm
Brake Levers
Tektro JL352-RS, aluminium, easy reach brake lever
Saddle
Frog Bikes child-specific saddle (small), steel rails
A
Wheelbase (mm)
726
B
Seatube Angle (Degrees)
75
C
Head tube angle (degrees)
71
D
Effective top tube (mm)
390
E
Head tube length (mm)
75
F
Chain stay length (mm)
303
G
Seat tube Length
230
H
BB to Floor (mm)
170
In contrast to many kids' bikes, Frog bikes are sized by the leg length rather than age, as this is the most reliable way of getting the right size of bike for each child. Age alone isn’t a reliable measure as there is a large spread of “normal” leg lengths & heights for each age.
Please take the time to measure the rider’s inside leg.
It’s easy to measure:
Stand the child in socks against a wall
Place a small book between their legs, as high as is comfortable
Ask the child to move away and measure from the top of the book to the floor.
Once you have measured the inside leg, use this table to find the right size of bike for your child. Note we give the MINIMUM inside leg length for each bike, with the saddle at its lowest setting. At this height, the child will safely and comfortably be able to get their feet on the ground. Don’t worry - Frog Bikes have long seat posts, so the saddle can be raised a long way as the rider grows.
Minimum inside leg in cm (in)
Approx age
Wheel Size
Frame Size
Tadpole Mini
24cm
1-2
10"
Tadpole
31cm (12")
2-3
12"
Tadpole Plus
38cm(15")
3-4
14"
Frog 43
43cm(17")
3-4
14"
9"
Frog 44
48cm(19")
4-5
16"
9.5"
Frog 52s
52cm
5-6
20"
10"
Frog 52
52cm(20")
5-6
20"
10"
Frog 55
55cm(22")
6-7
20"
11"
Frog 62
62cm(24")
8-10
24"
12"
Frog 69
69cm(27")
10-12
26"
14"
Frog 73
73cm(29")
12-14
26"
16"
Frog 78
78cm (31")
13+
26"
18"
Frog Road/Track 58
58cm(23")
6-7
20"
11"
Frog Road/Track 67
67cm(26")
8-12
24"
14"
Frog Road/Track 70
70cm(27")
11-14
26"
17"
Frog MTB 62
62cm (24")
8-10
24"
12.5"
Frog MTB 69
69cm (27")
10-12
26"
15"
Frog MTB 72
72cm (28")
13+
26"
16"
This 20 inch kids' bike is the ideal multi purpose geared bike for 5 or 6 year olds with a minimum inside leg of 52cm.
Wheel Size: 20" inch
Why buy a Frog 52?
- Lightweight but sturdy Frame
- Tektro brakes with small easy to reach brake lever
- 8-speed Shimano easy-change thumb-shifter gears
- Patented Frog cranks for easier pedalling
- Quick release seat post for easy height adjustment
- Free 5 year warranty on frame and forks
- Reflectors, mudguard* and bell included
Approx Age
5-6
Wheel Size
20" (ETRTO/ISO 406)
Colour
Red, Purple, Pink, Green, Spotty, Orange, Team Sky Black, Union Jack
Weight
8.54 kg
Frame
6061 T6 heat treated aluminium alloy, seat tube 10" (255mm)
Fork
6061 T6 heat treated aluminium alloy
Crank set / Chainring
Frog Bikes Patented, 102mm, aluminium straight arm cranks, 32T chainring, black
Bottom Bracket
Neco, square taper, 68/107.5, cartridge bearings
Pedals
Resin platform, 9/16" thread, reflectors
Front Hub
Quando, aluminium, sealed hub, QR, 28 hole
Rear Hub
Quando, aluminium, sealed hub, QR, 28 hole, Shimano type 8/9spd free hub body
Cassette
Shimano Altus, HG-31, 8-speed, 11-32t
Rear Derailleur
Shimano Altus, M310, 8-speed
Chain
KMC, 8-speed
Rim
Aluminium, 20"x1.5", double wall, machined braking surface
Seat Post
Aluminium, micro adjust, 27.2mm
Seat clamp
Aluminium, QR
Headset
Neco, 1"1/8 semi-integrated threadless, Frog Bikes top cap
Handlebar
Aluminium, flat bar, 460mm
Stem
Aluminium, 1"1/8, 38mm, 4 bolt clamp
Grips
Frog Bikes specific, lock on, slim grips
Gear Shifter
Shimano Alivio, M360, 8-speed, rapid fire
Brake Levers
Tektro JL510, aluminium, easy reach
Brakes (F&R)
Tektro 836AL, aluminium, linear pull
Saddle
Frog Bikes child-specific saddle (small), steel rails
Tyres
Kenda K1153, 20"x1.75", MTB, (ETRTO/ISO 47-406)
Mudguards
Full length, resin, black
Accessories box
Bell, bike reflectors white/red, wheel reflectors orange/white, paint plasters (excl. Union Jack- touch up paint supplied), frame protector patches
In contrast to many kids' bikes, Frog bikes are sized by the leg length rather than age, as this is the most reliable way of getting the right size of bike for each child. Age alone isn’t a reliable measure as there is a large spread of “normal” leg lengths & heights for each age.
Please take the time to measure the rider’s inside leg.
It’s easy to measure:
Stand the child in socks against a wall
Place a small book between their legs, as high as is comfortable
Ask the child to move away and measure from the top of the book to the floor.
Once you have measured the inside leg, use this table to find the right size of bike for your child. Note we give the MINIMUM inside leg length for each bike, with the saddle at its lowest setting. At this height, the child will safely and comfortably be able to get their feet on the ground. Don’t worry - Frog Bikes have long seat posts, so the saddle can be raised a long way as the rider grows.
We recommend that you go to a local store who will have many of our bikes available so the rider can sit on a bike.You will get help and advice on sizing, and get on-going service, as well assupport.
PLEASE NOTE we always recommend that you buy your Frog bike from your local Frog store, who will build it for you and ensure the fit is right for your child. Our bikes should always be built and checked by a qualified mechanic.
Minimum inside leg in cm (in)
Approx age
Wheel Size
Frame Size
Tadpole Mini
24cm
1-2
10"
Tadpole
31cm (12")
2-3
12"
Tadpole Plus
38cm(15")
3-4
14"
Frog 43
43cm(17")
3-4
14"
9"
Frog 48
48cm(19")
4-5
16"
9.5"
Frog 52s
52cm
5-6
20"
10"
Frog 52
52cm(20")
5-6
20"
10"
Frog 55
55cm(22")
6-7
20"
11"
Frog 62
62cm(24")
8-10
24"
12"
Frog 69
69cm(27")
10-12
26"
14"
Frog 73
73cm(29")
12-14
26"
16"
Frog 78
78cm (31")
13+
26"
18"
Frog Road/Track 58
58cm(23")
6-7
20"
11"
Frog Road/Track 67
67cm(26")
8-12
24"
14"
Frog Road/Track 70
70cm(27")
11-14
26"
17"
Frog MTB 62
62cm (24")
8-10
24"
12.5"
Frog MTB 69
69cm (27")
10-12
26"
15"
Frog MTB 72
72cm (28")
13+
26"
16"
This 20 inch kids' bike is the ideal multi purpose geared bike for 5 or 6 year olds with a minimum inside leg of 52cm.
Wheel Size: 20" inch
Why buy a Frog 52?
- Lightweight but sturdy Frame
- Tektro brakes with small easy to reach brake lever
- 8-speed Shimano easy-change thumb-shifter gears
- Patented Frog cranks for easier pedalling
- Quick release seat post for easy height adjustment
- Free 5 year warranty on frame and forks
- Reflectors, mudguard* and bell included
Approx Age
5-6
Wheel Size
20" (ETRTO/ISO 406)
Colour
Red, Purple, Pink, Green, Spotty, Orange, Team Sky Black, Union Jack
Weight
8.54 kg
Frame
6061 T6 heat treated aluminium alloy, seat tube 10" (255mm)
Fork
6061 T6 heat treated aluminium alloy
Crank set / Chainring
Frog Bikes Patented, 102mm, aluminium straight arm cranks, 32T chainring, black
Bottom Bracket
Neco, square taper, 68/107.5, cartridge bearings
Pedals
Resin platform, 9/16" thread, reflectors
Front Hub
Quando, aluminium, sealed hub, QR, 28 hole
Rear Hub
Quando, aluminium, sealed hub, QR, 28 hole, Shimano type 8/9spd free hub body
Cassette
Shimano Altus, HG-31, 8-speed, 11-32t
Rear Derailleur
Shimano Altus, M310, 8-speed
Chain
KMC, 8-speed
Rim
Aluminium, 20"x1.5", double wall, machined braking surface
Seat Post
Aluminium, micro adjust, 27.2mm
Seat clamp
Aluminium, QR
Headset
Neco, 1"1/8 semi-integrated threadless, Frog Bikes top cap
Handlebar
Aluminium, flat bar, 460mm
Stem
Aluminium, 1"1/8, 38mm, 4 bolt clamp
Grips
Frog Bikes specific, lock on, slim grips
Gear Shifter
Shimano Alivio, M360, 8-speed, rapid fire
Brake Levers
Tektro JL510, aluminium, easy reach
Brakes (F&R)
Tektro 836AL, aluminium, linear pull
Saddle
Frog Bikes child-specific saddle (small), steel rails
Tyres
Kenda K1153, 20"x1.75", MTB, (ETRTO/ISO 47-406)
Mudguards
Full length, resin, black
Accessories box
Bell, bike reflectors white/red, wheel reflectors orange/white, paint plasters (excl. Union Jack- touch up paint supplied), frame protector patches
In contrast to many kids' bikes, Frog bikes are sized by the leg length rather than age, as this is the most reliable way of getting the right size of bike for each child. Age alone isn’t a reliable measure as there is a large spread of “normal” leg lengths & heights for each age.
Please take the time to measure the rider’s inside leg.
It’s easy to measure:
Stand the child in socks against a wall
Place a small book between their legs, as high as is comfortable
Ask the child to move away and measure from the top of the book to the floor.
Once you have measured the inside leg, use this table to find the right size of bike for your child. Note we give the MINIMUM inside leg length for each bike, with the saddle at its lowest setting. At this height, the child will safely and comfortably be able to get their feet on the ground. Don’t worry - Frog Bikes have long seat posts, so the saddle can be raised a long way as the rider grows.
We recommend that you go to a local store who will have many of our bikes available so the rider can sit on a bike.You will get help and advice on sizing, and get on-going service, as well assupport.
PLEASE NOTE we always recommend that you buy your Frog bike from your local Frog store, who will build it for you and ensure the fit is right for your child. Our bikes should always be built and checked by a qualified mechanic.
Minimum inside leg in cm (in)
Approx age
Wheel Size
Frame Size
Tadpole Mini
24cm
1-2
10"
Tadpole
31cm (12")
2-3
12"
Tadpole Plus
38cm(15")
3-4
14"
Frog 43
43cm(17")
3-4
14"
9"
Frog 48
48cm(19")
4-5
16"
9.5"
Frog 52s
52cm
5-6
20"
10"
Frog 52
52cm(20")
5-6
20"
10"
Frog 55
55cm(22")
6-7
20"
11"
Frog 62
62cm(24")
8-10
24"
12"
Frog 69
69cm(27")
10-12
26"
14"
Frog 73
73cm(29")
12-14
26"
16"
Frog 78
78cm (31")
13+
26"
18"
Frog Road/Track 58
58cm(23")
6-7
20"
11"
Frog Road/Track 67
67cm(26")
8-12
24"
14"
Frog Road/Track 70
70cm(27")
11-14
26"
17"
Frog MTB 62
62cm (24")
8-10
24"
12.5"
Frog MTB 69
69cm (27")
10-12
26"
15"
Frog MTB 72
72cm (28")
13+
26"
16"
This 20 inch kids' bike is the ideal multi purpose geared bike for 5 or 6 year olds with a minimum inside leg of 52cm.
Wheel Size: 20" inch
Why buy a Frog 52?
- Lightweight but sturdy Frame
- Tektro brakes with small easy to reach brake lever
- 8-speed Shimano easy-change thumb-shifter gears
- Patented Frog cranks for easier pedalling
- Quick release seat post for easy height adjustment
- Free 5 year warranty on frame and forks
- Reflectors, mudguard* and bell included
Approx Age
5-6
Wheel Size
20" (ETRTO/ISO 406)
Colour
Red, Purple, Pink, Green, Spotty, Orange, Team Sky Black, Union Jack
Weight
8.54 kg
Frame
6061 T6 heat treated aluminium alloy, seat tube 10" (255mm)
Fork
6061 T6 heat treated aluminium alloy
Crank set / Chainring
Frog Bikes Patented, 102mm, aluminium straight arm cranks, 32T chainring, black
Bottom Bracket
Neco, square taper, 68/107.5, cartridge bearings
Pedals
Resin platform, 9/16" thread, reflectors
Front Hub
Quando, aluminium, sealed hub, QR, 28 hole
Rear Hub
Quando, aluminium, sealed hub, QR, 28 hole, Shimano type 8/9spd free hub body
Cassette
Shimano Altus, HG-31, 8-speed, 11-32t
Rear Derailleur
Shimano Altus, M310, 8-speed
Chain
KMC, 8-speed
Rim
Aluminium, 20"x1.5", double wall, machined braking surface
Seat Post
Aluminium, micro adjust, 27.2mm
Seat clamp
Aluminium, QR
Headset
Neco, 1"1/8 semi-integrated threadless, Frog Bikes top cap
Handlebar
Aluminium, flat bar, 460mm
Stem
Aluminium, 1"1/8, 38mm, 4 bolt clamp
Grips
Frog Bikes specific, lock on, slim grips
Gear Shifter
Shimano Alivio, M360, 8-speed, rapid fire
Brake Levers
Tektro JL510, aluminium, easy reach
Brakes (F&R)
Tektro 836AL, aluminium, linear pull
Saddle
Frog Bikes child-specific saddle (small), steel rails
Tyres
Kenda K1153, 20"x1.75", MTB, (ETRTO/ISO 47-406)
Mudguards
Full length, resin, black
Accessories box
Bell, bike reflectors white/red, wheel reflectors orange/white, paint plasters (excl. Union Jack- touch up paint supplied), frame protector patches
In contrast to many kids' bikes, Frog bikes are sized by the leg length rather than age, as this is the most reliable way of getting the right size of bike for each child. Age alone isn’t a reliable measure as there is a large spread of “normal” leg lengths & heights for each age.
Please take the time to measure the rider’s inside leg.
It’s easy to measure:
Stand the child in socks against a wall
Place a small book between their legs, as high as is comfortable
Ask the child to move away and measure from the top of the book to the floor.
Once you have measured the inside leg, use this table to find the right size of bike for your child. Note we give the MINIMUM inside leg length for each bike, with the saddle at its lowest setting. At this height, the child will safely and comfortably be able to get their feet on the ground. Don’t worry - Frog Bikes have long seat posts, so the saddle can be raised a long way as the rider grows.
We recommend that you go to a local store who will have many of our bikes available so the rider can sit on a bike.You will get help and advice on sizing, and get on-going service, as well assupport.
PLEASE NOTE we always recommend that you buy your Frog bike from your local Frog store, who will build it for you and ensure the fit is right for your child. Our bikes should always be built and checked by a qualified mechanic.
Minimum inside leg in cm (in)
Approx age
Wheel Size
Frame Size
Tadpole Mini
24cm
1-2
10"
Tadpole
31cm (12")
2-3
12"
Tadpole Plus
38cm(15")
3-4
14"
Frog 43
43cm(17")
3-4
14"
9"
Frog 48
48cm(19")
4-5
16"
9.5"
Frog 52s
52cm
5-6
20"
10"
Frog 52
52cm(20")
5-6
20"
10"
Frog 55
55cm(22")
6-7
20"
11"
Frog 62
62cm(24")
8-10
24"
12"
Frog 69
69cm(27")
10-12
26"
14"
Frog 73
73cm(29")
12-14
26"
16"
Frog 78
78cm (31")
13+
26"
18"
Frog Road/Track 58
58cm(23")
6-7
20"
11"
Frog Road/Track 67
67cm(26")
8-12
24"
14"
Frog Road/Track 70
70cm(27")
11-14
26"
17"
Frog MTB 62
62cm (24")
8-10
24"
12.5"
Frog MTB 69
69cm (27")
10-12
26"
15"
Frog MTB 72
72cm (28")
13+
26"
16"
This 20 inch kids' bike is the ideal multi purpose geared bike for 5 or 6 year olds with a minimum inside leg of 52cm.
Wheel Size: 20" inch
Why buy a Frog 52?
- Lightweight but sturdy Frame
- Tektro brakes with small easy to reach brake lever
- 8-speed Shimano easy-change thumb-shifter gears
- Patented Frog cranks for easier pedalling
- Quick release seat post for easy height adjustment
- Free 5 year warranty on frame and forks
- Reflectors, mudguard* and bell included
Approx Age
5-6
Wheel Size
20" (ETRTO/ISO 406)
Colour
Red, Purple, Pink, Green, Spotty, Orange, Team Sky Black, Union Jack
Weight
8.54 kg
Frame
6061 T6 heat treated aluminium alloy, seat tube 10" (255mm)
Fork
6061 T6 heat treated aluminium alloy
Crank set / Chainring
Frog Bikes Patented, 102mm, aluminium straight arm cranks, 32T chainring, black
Bottom Bracket
Neco, square taper, 68/107.5, cartridge bearings
Pedals
Resin platform, 9/16" thread, reflectors
Front Hub
Quando, aluminium, sealed hub, QR, 28 hole
Rear Hub
Quando, aluminium, sealed hub, QR, 28 hole, Shimano type 8/9spd free hub body
Cassette
Shimano Altus, HG-31, 8-speed, 11-32t
Rear Derailleur
Shimano Altus, M310, 8-speed
Chain
KMC, 8-speed
Rim
Aluminium, 20"x1.5", double wall, machined braking surface
Seat Post
Aluminium, micro adjust, 27.2mm
Seat clamp
Aluminium, QR
Headset
Neco, 1"1/8 semi-integrated threadless, Frog Bikes top cap
Handlebar
Aluminium, flat bar, 460mm
Stem
Aluminium, 1"1/8, 38mm, 4 bolt clamp
Grips
Frog Bikes specific, lock on, slim grips
Gear Shifter
Shimano Alivio, M360, 8-speed, rapid fire
Brake Levers
Tektro JL510, aluminium, easy reach
Brakes (F&R)
Tektro 836AL, aluminium, linear pull
Saddle
Frog Bikes child-specific saddle (small), steel rails
Tyres
Kenda K1153, 20"x1.75", MTB, (ETRTO/ISO 47-406)
Mudguards
Full length, resin, black
Accessories box
Bell, bike reflectors white/red, wheel reflectors orange/white, paint plasters (excl. Union Jack- touch up paint supplied), frame protector patches
In contrast to many kids' bikes, Frog bikes are sized by the leg length rather than age, as this is the most reliable way of getting the right size of bike for each child. Age alone isn’t a reliable measure as there is a large spread of “normal” leg lengths & heights for each age.
Please take the time to measure the rider’s inside leg.
It’s easy to measure:
Stand the child in socks against a wall
Place a small book between their legs, as high as is comfortable
Ask the child to move away and measure from the top of the book to the floor.
Once you have measured the inside leg, use this table to find the right size of bike for your child. Note we give the MINIMUM inside leg length for each bike, with the saddle at its lowest setting. At this height, the child will safely and comfortably be able to get their feet on the ground. Don’t worry - Frog Bikes have long seat posts, so the saddle can be raised a long way as the rider grows.
We recommend that you go to a local store who will have many of our bikes available so the rider can sit on a bike.You will get help and advice on sizing, and get on-going service, as well assupport.
PLEASE NOTE we always recommend that you buy your Frog bike from your local Frog store, who will build it for you and ensure the fit is right for your child. Our bikes should always be built and checked by a qualified mechanic.
Minimum inside leg in cm (in)
Approx age
Wheel Size
Frame Size
Tadpole Mini
24cm
1-2
10"
Tadpole
31cm (12")
2-3
12"
Tadpole Plus
38cm(15")
3-4
14"
Frog 43
43cm(17")
3-4
14"
9"
Frog 48
48cm(19")
4-5
16"
9.5"
Frog 52s
52cm
5-6
20"
10"
Frog 52
52cm(20")
5-6
20"
10"
Frog 55
55cm(22")
6-7
20"
11"
Frog 62
62cm(24")
8-10
24"
12"
Frog 69
69cm(27")
10-12
26"
14"
Frog 73
73cm(29")
12-14
26"
16"
Frog 78
78cm (31")
13+
26"
18"
Frog Road/Track 58
58cm(23")
6-7
20"
11"
Frog Road/Track 67
67cm(26")
8-12
24"
14"
Frog Road/Track 70
70cm(27")
11-14
26"
17"
Frog MTB 62
62cm (24")
8-10
24"
12.5"
Frog MTB 69
69cm (27")
10-12
26"
15"
Frog MTB 72
72cm (28")
13+
26"
16"
This 20 inch kids' bike is the ideal multi purpose geared bike for 5 or 6 year olds with a minimum inside leg of 52cm.
Wheel Size: 20" inch
Why buy a Frog 52?
- Lightweight but sturdy Frame
- Tektro brakes with small easy to reach brake lever
- 8-speed Shimano easy-change thumb-shifter gears
- Patented Frog cranks for easier pedalling
- Quick release seat post for easy height adjustment
- Free 5 year warranty on frame and forks
- Reflectors, mudguard* and bell included
Approx Age
5-6
Wheel Size
20" (ETRTO/ISO 406)
Colour
Red, Purple, Pink, Green, Spotty, Orange, Team Sky Black, Union Jack
Weight
8.54 kg
Frame
6061 T6 heat treated aluminium alloy, seat tube 10" (255mm)
Fork
6061 T6 heat treated aluminium alloy
Crank set / Chainring
Frog Bikes Patented, 102mm, aluminium straight arm cranks, 32T chainring, black
Bottom Bracket
Neco, square taper, 68/107.5, cartridge bearings
Pedals
Resin platform, 9/16" thread, reflectors
Front Hub
Quando, aluminium, sealed hub, QR, 28 hole
Rear Hub
Quando, aluminium, sealed hub, QR, 28 hole, Shimano type 8/9spd free hub body
Cassette
Shimano Altus, HG-31, 8-speed, 11-32t
Rear Derailleur
Shimano Altus, M310, 8-speed
Chain
KMC, 8-speed
Rim
Aluminium, 20"x1.5", double wall, machined braking surface
Seat Post
Aluminium, micro adjust, 27.2mm
Seat clamp
Aluminium, QR
Headset
Neco, 1"1/8 semi-integrated threadless, Frog Bikes top cap
Handlebar
Aluminium, flat bar, 460mm
Stem
Aluminium, 1"1/8, 38mm, 4 bolt clamp
Grips
Frog Bikes specific, lock on, slim grips
Gear Shifter
Shimano Alivio, M360, 8-speed, rapid fire
Brake Levers
Tektro JL510, aluminium, easy reach
Brakes (F&R)
Tektro 836AL, aluminium, linear pull
Saddle
Frog Bikes child-specific saddle (small), steel rails
Tyres
Kenda K1153, 20"x1.75", MTB, (ETRTO/ISO 47-406)
Mudguards
Full length, resin, black
Accessories box
Bell, bike reflectors white/red, wheel reflectors orange/white, paint plasters (excl. Union Jack- touch up paint supplied), frame protector patches
In contrast to many kids' bikes, Frog bikes are sized by the leg length rather than age, as this is the most reliable way of getting the right size of bike for each child. Age alone isn’t a reliable measure as there is a large spread of “normal” leg lengths & heights for each age.
Please take the time to measure the rider’s inside leg.
It’s easy to measure:
Stand the child in socks against a wall
Place a small book between their legs, as high as is comfortable
Ask the child to move away and measure from the top of the book to the floor.
Once you have measured the inside leg, use this table to find the right size of bike for your child. Note we give the MINIMUM inside leg length for each bike, with the saddle at its lowest setting. At this height, the child will safely and comfortably be able to get their feet on the ground. Don’t worry - Frog Bikes have long seat posts, so the saddle can be raised a long way as the rider grows.
We recommend that you go to a local store who will have many of our bikes available so the rider can sit on a bike.You will get help and advice on sizing, and get on-going service, as well assupport.
PLEASE NOTE we always recommend that you buy your Frog bike from your local Frog store, who will build it for you and ensure the fit is right for your child. Our bikes should always be built and checked by a qualified mechanic.
Minimum inside leg in cm (in)
Approx age
Wheel Size
Frame Size
Tadpole Mini
24cm
1-2
10"
Tadpole
31cm (12")
2-3
12"
Tadpole Plus
38cm(15")
3-4
14"
Frog 43
43cm(17")
3-4
14"
9"
Frog 48
48cm(19")
4-5
16"
9.5"
Frog 52s
52cm
5-6
20"
10"
Frog 52
52cm(20")
5-6
20"
10"
Frog 55
55cm(22")
6-7
20"
11"
Frog 62
62cm(24")
8-10
24"
12"
Frog 69
69cm(27")
10-12
26"
14"
Frog 73
73cm(29")
12-14
26"
16"
Frog 78
78cm (31")
13+
26"
18"
Frog Road/Track 58
58cm(23")
6-7
20"
11"
Frog Road/Track 67
67cm(26")
8-12
24"
14"
Frog Road/Track 70
70cm(27")
11-14
26"
17"
Frog MTB 62
62cm (24")
8-10
24"
12.5"
Frog MTB 69
69cm (27")
10-12
26"
15"
Frog MTB 72
72cm (28")
13+
26"
16"
This 20 inch kids' bike is the ideal multi purpose geared bike for 5 or 6 year olds with a minimum inside leg of 52cm.
Wheel Size: 20" inch
Why buy a Frog 52?
- Lightweight but sturdy Frame
- Tektro brakes with small easy to reach brake lever
- 8-speed Shimano easy-change thumb-shifter gears
- Patented Frog cranks for easier pedalling
- Quick release seat post for easy height adjustment
- Free 5 year warranty on frame and forks
- Reflectors, mudguard* and bell included
Approx Age
5-6
Wheel Size
20" (ETRTO/ISO 406)
Colour
Red, Purple, Pink, Green, Spotty, Orange, Team Sky Black, Union Jack
Weight
8.54 kg
Frame
6061 T6 heat treated aluminium alloy, seat tube 10" (255mm)
Fork
6061 T6 heat treated aluminium alloy
Crank set / Chainring
Frog Bikes Patented, 102mm, aluminium straight arm cranks, 32T chainring, black
Bottom Bracket
Neco, square taper, 68/107.5, cartridge bearings
Pedals
Resin platform, 9/16" thread, reflectors
Front Hub
Quando, aluminium, sealed hub, QR, 28 hole
Rear Hub
Quando, aluminium, sealed hub, QR, 28 hole, Shimano type 8/9spd free hub body
Cassette
Shimano Altus, HG-31, 8-speed, 11-32t
Rear Derailleur
Shimano Altus, M310, 8-speed
Chain
KMC, 8-speed
Rim
Aluminium, 20"x1.5", double wall, machined braking surface
Seat Post
Aluminium, micro adjust, 27.2mm
Seat clamp
Aluminium, QR
Headset
Neco, 1"1/8 semi-integrated threadless, Frog Bikes top cap
Handlebar
Aluminium, flat bar, 460mm
Stem
Aluminium, 1"1/8, 38mm, 4 bolt clamp
Grips
Frog Bikes specific, lock on, slim grips
Gear Shifter
Shimano Alivio, M360, 8-speed, rapid fire
Brake Levers
Tektro JL510, aluminium, easy reach
Brakes (F&R)
Tektro 836AL, aluminium, linear pull
Saddle
Frog Bikes child-specific saddle (small), steel rails
Tyres
Kenda K1153, 20"x1.75", MTB, (ETRTO/ISO 47-406)
Mudguards
Full length, resin, black
Accessories box
Bell, bike reflectors white/red, wheel reflectors orange/white, paint plasters (excl. Union Jack- touch up paint supplied), frame protector patches
In contrast to many kids' bikes, Frog bikes are sized by the leg length rather than age, as this is the most reliable way of getting the right size of bike for each child. Age alone isn’t a reliable measure as there is a large spread of “normal” leg lengths & heights for each age.
Please take the time to measure the rider’s inside leg.
It’s easy to measure:
Stand the child in socks against a wall
Place a small book between their legs, as high as is comfortable
Ask the child to move away and measure from the top of the book to the floor.
Once you have measured the inside leg, use this table to find the right size of bike for your child. Note we give the MINIMUM inside leg length for each bike, with the saddle at its lowest setting. At this height, the child will safely and comfortably be able to get their feet on the ground. Don’t worry - Frog Bikes have long seat posts, so the saddle can be raised a long way as the rider grows.
We recommend that you go to a local store who will have many of our bikes available so the rider can sit on a bike.You will get help and advice on sizing, and get on-going service, as well assupport.
PLEASE NOTE we always recommend that you buy your Frog bike from your local Frog store, who will build it for you and ensure the fit is right for your child. Our bikes should always be built and checked by a qualified mechanic.
Minimum inside leg in cm (in)
Approx age
Wheel Size
Frame Size
Tadpole Mini
24cm
1-2
10"
Tadpole
31cm (12")
2-3
12"
Tadpole Plus
38cm(15")
3-4
14"
Frog 43
43cm(17")
3-4
14"
9"
Frog 48
48cm(19")
4-5
16"
9.5"
Frog 52s
52cm
5-6
20"
10"
Frog 52
52cm(20")
5-6
20"
10"
Frog 55
55cm(22")
6-7
20"
11"
Frog 62
62cm(24")
8-10
24"
12"
Frog 69
69cm(27")
10-12
26"
14"
Frog 73
73cm(29")
12-14
26"
16"
Frog 78
78cm (31")
13+
26"
18"
Frog Road/Track 58
58cm(23")
6-7
20"
11"
Frog Road/Track 67
67cm(26")
8-12
24"
14"
Frog Road/Track 70
70cm(27")
11-14
26"
17"
Frog MTB 62
62cm (24")
8-10
24"
12.5"
Frog MTB 69
69cm (27")
10-12
26"
15"
Frog MTB 72
72cm (28")
13+
26"
16"
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