Choosing a quality children’s bike can feel like a big investment, especially when you know your child will grow. So it’s natural to wonder: how long will it fit, and what happens when it doesn’t?
Children’s bikes are designed around a particular stage of growth. A bike that fits well now can be easier for a child to manage, but they may eventually need the next size. YOMO BikeTrade is YOMO’s bike upgrade and trade-in programme: eligible bikes traded in within 24 months of purchase can receive up to 50% of the original bike price (excluding VAT, delivery and accessories) as credit towards the family’s next YOMO, helping reduce the cost of moving up a size.
Here’s what that means for families, and how to plan for the next bike without buying one that’s too big today.
Why children outgrow bikes
Children grow quickly, but bike sizing is about more than raising the saddle. A children’s bike is designed for a smaller rider’s proportions and needs to fit well enough for them to reach the controls and feel in control. As they grow, the frame and overall size may no longer suit them.
That’s different from buying an adult bike with extra room to grow. Choosing a bike that’s too large can make it harder for a child to manage comfortably now. The aim is to find an appropriate fit for the rider today, with a sensible amount of growing room.
YOMO’s range covers several stages, from first pedal bikes to larger geared models. For example, the YOMO 14 weighs 5.5 kg and is designed for approximately ages 3–5. The YOMO 16 weighs 5.8 kg and is designed for approximately ages 4–6. The YOMO 18 is a bridging size between smaller single-speed bikes and larger geared bikes.
As riders grow and develop, the YOMO 20 offers 7-speed Shimano gearing, weighs 7.65 kg and is designed for approximately ages 6–9. The YOMO 24 weighs 9.4 kg and has 8-speed Shimano gearing and mechanical disc brakes, for approximately ages 8–12. The YOMO 26 weighs 9.9 kg and also has 8-speed Shimano gearing and mechanical disc brakes, for approximately ages 10+.
Age ranges are a guide, not a substitute for checking fit. Children of the same age can have different measurements and riding confidence.
What is YOMO BikeTrade?
YOMO BikeTrade is a programme to help families upgrade to the next YOMO size when their child has outgrown their current bike. Eligible bikes receive credit towards the next purchase: up to 50% of the original bike price, excluding VAT, delivery and accessories. That credit can reduce the cost of progressing through bike sizes, rather than leaving families to cover the full cost of the next bike without any value towards it.
The idea is straightforward: children need a bike that suits their size now, and BikeTrade gives eligible YOMO bikes a role in planning that next step. The programme is designed for YOMO bikes traded in within 24 months of the original purchase date.
Real family riding is expected: normal wear and tear is fine, and an outgrown bike doesn't need to look untouched. The bike does need to be complete, structurally sound and honestly described, and the final credit is confirmed after inspection. A handy credit estimator on the BikeTrade page gives an illustrative figure based on the original price and condition, and current terms are always confirmed there.
Trade-in or private resale: what should families consider?
When a child outgrows a bike, families often have to decide what to do with it. It might be kept in the shed, passed on to someone they know, or listed for private sale.
Private resale can be an option, but it may mean preparing a listing, responding to messages and arranging collection. BikeTrade offers a different route: eligible bikes receive credit towards the next YOMO purchase, and the return can be packed in the box the new bike arrives in, with the collection arranged as part of the process. For families already planning to move to another YOMO size, that can make the old bike part of the upgrade decision.
The best choice depends on your circumstances. BikeTrade is not a general trade-in for any make of bicycle: it is designed for eligible YOMO bikes, so check the current programme terms to see whether your bike is eligible.
A more sustainable way to move up
A bike that no longer fits one child may still be useful beyond their time riding it. Keeping bikes in use for longer, rather than leaving them unused, supports a more sustainable approach to children’s cycling.
YOMO BikeTrade brings that idea into the upgrade journey: it helps families move to a suitable next size while giving eligible bikes a second chapter. Returned bikes are passed to an authorised YOMO partner, inspected and refurbished where suitable, and can then be leased or sold to other families. It’s a practical way to think about both sides of an upgrade. The bike your child needs now and the one they’ve outgrown.
Start with the right size
BikeTrade can help with the cost of moving up, but choosing the right size in the first place still matters. Buying a bike that is too large just to extend its use can affect how comfortably your child can reach and control it.
Before choosing a new size, check your child’s height and inside-leg measurement, and think about how confidently they ride. The YOMO Perfect Size Finder helps families compare fit options using measurements and riding ability. You can also read YOMO’s guide to why choosing the right size bike is important.
When your child has outgrown their current bike, check the BikeTrade terms and use the size guidance together: one helps you understand whether your current bike may be eligible, while the other helps you identify a suitable next size.
Planning the next kids’ bike upgrade
It’s reasonable to ask how long a children’s bike will fit. The honest answer is that it depends on your child’s growth and the bike’s fit. Rather than buying too large, focus on the right size for your child now and think ahead to the options available as they grow.
YOMO BikeTrade is designed to make that progression easier. Eligible bikes traded in within 24 months of purchase receive up to 50% of the original price (excluding VAT, delivery and accessories) as credit towards the next YOMO, helping reduce the cost of moving through the sizes and supporting a more sustainable approach to children’s cycling.
If you’re considering an upgrade, start by measuring your child and checking the next suitable size with the Perfect Size Finder. Then visit the YOMO BikeTrade page to check the current eligibility and terms before making plans.
Frequently asked questions about YOMO BikeTrade
How much credit could I receive through BikeTrade?
Eligible bikes may receive up to 50% of the original bike price, excluding VAT, delivery and accessories. In excellent condition that’s 50% of the ex-VAT price, and in good condition around 40%. The final credit is confirmed after the bike is inspected.
How long after buying can I use BikeTrade?
The programme is designed for YOMO bikes traded in within 24 months of the original purchase date.
Does the bike need to be in perfect condition?
No. YOMO bikes are made to be ridden, and normal signs of family use are expected. The bike needs to be complete, structurally sound and honestly described. Serious damage, missing parts or major modifications may reduce the credit or make the bike ineligible.
How does the BikeTrade process work?
In four steps: choose the right next YOMO size, check the guidance on the support page, submit a BikeTrade request with your bike model, purchase details and clear photos, then return the bike using the box your new YOMO arrived in where possible. Once the bike is received and inspected, the final credit is confirmed.
Can I trade in a bike from another brand?
The current BikeTrade programme is designed for eligible YOMO bikes only. If the programme expands, details would be updated on the BikeTrade page.
Is the online credit estimate guaranteed?
No. The calculator on the BikeTrade page is an illustrative estimate. The final credit is confirmed only after eligibility checks and a physical inspection of the bike.
What happens to the returned bike?
Returned bikes are passed to an authorised YOMO partner, who inspects and refurbishes them where suitable. The bikes can then be leased or sold to other families, extending their useful life.
Can I use BikeTrade through a dealer?
Selected participating YOMO dealers may support BikeTrade. Availability can vary, so confirm the exact process before visiting a store.
