There’s no denying it, kids grow fast. One minute they’re wobbling around the garden on stabilisers, the next they’re flying down the path like they’ve got somewhere to be. So how do you choose the right size bike for a child when they’re changing by the week?
At YOMO, we think buying a bike should be fun. We make sizing simple and it matters more than you might expect.

Why Size Isn’t Just a Number
A bike that fits properly isn’t just more comfortable. It’s safer, easier to ride, and far more enjoyable. When the size is right:
- Kids feel in control & confident
- Learning to ride becomes smoother and faster
- There’s less risk of frustration & falls
- They’re more likely to ride; which is the whole point, right?
Every YOMO bike is lightweight, easy to handle, and designed to match your child’s stage. No guesswork, no compromises, no confusion.
Don’t Guess! Use Our Perfect Size Finder
We’ve made sizing a new kids bike simple. Our Perfect Size Finder takes your child’s height and age, then recommends the ideal YOMO bike for them. No charts, no guesswork and more importantly, no stress!
It’s fast, accurate, and tailored to our full range of high quality kids’ bikes.

What About Growth Spurts?
We hear it all the time: “Should I size up so it lasts longer?” It’s tempting, but not ideal. A bike that’s too big can knock their confidence and make riding harder than it needs to be.
Instead, choose the right size now. When they’re ready for the next one, YOMO has your back. Our BikeTrade programme lets you trade in their current YOMO for credit towards the next size up. It’s a practical way to keep them riding safely, without overspending.
Christmas Sorted
If you’re thinking of putting a bike under the tree this year, now’s the time to act. A YOMO bike is more than a present. It’s a passport to adventure, fresh air, and fun on wheels.
Use the Perfect Size Finder, plan ahead with BikeTrade, choose your favourite colour and give them a gift they’ll never forget. Plus we offer a free helmet with all bike purchases so they can stay safe as they cycle.
Find the right bike for your child today.
