All little riders grow at different rates. So the best way of finding the right size bike for them is to look at models in their age range and then match their height to the right bike. Kid’s bikes are basically scaled down versions of adult bikes and are typically measured through wheel sizes. As a rule, it’s best to get your child to sit on a potential new bike and to check that they can touch the ground with both feet. For more information about choosing kid's bikes visit our buying guide.
This handy chart should show you the right bike for your child, based on age, height and wheel size. In order to accurately match the correct bike for your child, it’s essential you measure their height accurately.
|Rider Height||Suggested size|
|Feet & Inches||Cms||Inside Leg (min)||Age Range||Suggested Wheel|
|3' - 3'5"||90cm - 105cm||40cm||2 - 4 years||12"||View all 12" wheel Kids' Bikes|
|3'5" - 3'9"||105cm - 118cm||46cm||4 - 7 years||14-16"||View all 14-16" wheel Kids' Bikes|
|3'9" - 4'5"||118cm - 135cm||53cm||7 - 10 years||18-20"||View all 18-20" wheel Kids' Bikes|
|4'5" - 5'||135cm - 150cm||62cm||10 - 13 years||24"||View all 24" wheel Kids' Bikes|
|5'+||150cm+||69cm||13 years +||26-27.5" & 700c||View all 26-27.5" & 700c wheel Kids' Bikes|
These two-wheeled beauties make the perfect start to life on two wheels. With no pedals or cranks, they’re designed to teach balance and control – they’re the perfect introduction for young children.
Typically a 2-4 year old will need a bike with 12” wheels. Bikes like these usually come with stabiliser wheels to help with balance, coaster brakes (which work when pedalling backwards) and/or independent front & rear hand operated bar brakes (depending on brand).
Typically a 4-7 year old will need a bike with either 14" or 16" wheels. This covers heights between 105cm and 118cm. As with 12" wheeled bikes, these come with stabilisers, coaster brakes and/or independent front and rear hand operated brakes. They also have rubber tyres and inner tubes for a smoother ride.
At the ripe old age of 7, children are generally ready for a bike with 18” or 20” wheels. By now they should’ve mastered hand operated brakes and they’ll be riding without stabilisers. This size of bike covers heights between 118cm and 135cm. These bikes will introduce children to gears, while some models even have front suspension, so they’ll start to look very similar to an adult bike.
Most 10-13 year olds will be ready to move onto a bike with 24" inch wheels. These bikes are pretty much smaller versions of adult bikes. They’ll usually have a few more gears than 20" bikes, but the main difference is the extra length in the wheelbase to accommodate the larger wheels. These will most likely have front or rear suspension.
When kids hit their teens (good luck to you) they’re ready to make the jump to a 26" wheeled bike (650B wheel size for a road bike). These have full size adult wheels and it’s at this point that you can choose their bike based on frame size – so a 13" or 14" frame will be ideal.
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