Kids Bike Size Guide

Inside leg measuremnt is the most reliable way of getting the right size of bike for your child. Age alone isn’t a reliable measure. It is always best to sit your child on the bike before purchasing, but where this is not possible we hope this guide helps.

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, in cm.

Once you have measured the inside leg, use this table to find the right size of bike for your child. Note: The bike size may vary slightly by supplier...

Wheel Size	Inside leg	Child Height	Approx. Age
12 inch	33 - 38(cm)	85 - 100(cm)	2 - 4
14 inch	38 - 43(cm)	95 - 100(cm)	3 - 5
16 inch	43 - 48(cm)	110 - 120(cm)	4 - 6
20 inch	48 - 58(cm)	120 - 135(cm)	6 - 8
24 inch	61 - 68(cm)	135 - 145(cm)	8 - 10
26 inch	68 +(cm)	145 +(cm)	10 +

In contrast to many children's bikes, Frog bikes are sized by the leg length.

Once you have measured the inside leg, use the table below to find the right size of bike for your child. Note Frog 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.

Frog Bike	Min inside leg	Approx. age
Tadpole	34(cm)	2-3
Frog 43	43(cm)	3-4
Frog 48	48(cm)	4-5
Frog 52	52(cm)	5-6
Frog 55	55(cm)	6-7
Frog 62 & 62 MTB	62(cm)	8-10
Frog 69 &69 MTB	69(cm)	10-12
Frog 73	73(cm)	12-14
Frog 78	78(cm)	13+
72 MTB	72(cm)	13+
Frog 58 Racer	58(cm)	6 -7
Frog 67 Racer	67(cm)	8 -12
Frog 70 Racer	70(cm)	11-14

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Kids Bike Size Guide

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