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" | 33 - 38(cm) | 85 - 100(cm) | 2 - 4 |
| 14" | 38 - 43(cm) | 95 - 100(cm) | 3 - 5 |
| 16" | 43 - 48(cm) | 110 - 120(cm) | 4 - 6 |
| 20" | 48 - 58(cm) | 120 - 135(cm) | 6 - 8 |
| 24" | 61 - 68(cm) | 135 - 145(cm) | 8 - 10 |
| 26" | 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 & 62MTB | 62(cm) | 8-10 |
| Frog 69 & 69MTB | 69(cm) | 10-12 |
| Frog 73 | 73(cm) | 12-14 |
| Frog 78 | 78(cm) | 13+ |
| Frog 72MTB | 72(cm) | 13+ |
| Frog 58 | 58(cm) | 6 -7 |
| Frog 67 | 67(cm) | 8 -12 |
| Frog 70 | 70(cm) | 11-14 |
