Children's mountain bikes: Keep an eye out when buying an MTB - what parents should consider
Jan Timmermann
· 03.02.2025
Children's mountain bikes are one of the biggest areas of development in the past decade. Almost every established bike manufacturer now has at least one MTB model in its programme specifically for youngsters.
There are also companies that specialise specifically in youth and children's mountain bikes. If parents want to treat their offspring to a suitable bike, the diverse range can easily be overwhelming.
We have compiled the most important aspects when buying a children's off-road bike and summarised them into three points. This allows families to recognise at a glance what really matters when buying a children's mountain bike.
1. hardtail, fully or even rigid fork?
Of course, the market for children's mountain bikes has long been flooded with full-suspension models. Manufacturers are hoping for a larger profit margin and parents only want to offer their offspring the best.
But is a fully always better than a hardtail? While this question is almost philosophical when it comes to adult bikes, it is often a little easier to answer when it comes to children. Small children in particular are light. With a body weight of less than 25 kilos, suspension forks and shocks can hardly be optimally adjusted.
The best setup options for small and light people - for example children - offer suspension elements with air damping. These sometimes have a price disadvantage compared to forks or suspension struts with steel springs, i.e. they cost more. However, this is always offset by a significant weight advantage.
Another plus point for the bike with a rigid rear end: On a hardtail, i.e. a mountain bike without rear suspension children not only learn to ride off-road more easily, but often more cleanly too. These bikes provide direct feedback from the ground.
Lightweight cross-country hardtails are particularly suitable for sporty kids. An MTB with rear suspension usually only makes sense for more experienced children. Not only do fullys cost more money, they are often simply too heavy in relation to a child's weight.
Only when children confidently tackle rougher trails or regularly ride in the bike park, a Fully can be the right choice. Then young bikers can also benefit from increased safety reserves and more speed in rough terrain benefit.
2. what size should it be?
Choosing the right size for a children's mountain bike can be extremely nerve-wracking. Children naturally want a toy that fits their height and can benefit from the better roll-over behaviour of large wheels.
Parents naturally dread having to buy their offspring a new bike every six months. We have put together a guide on how families can find the right frame and wheel size under this link. A test drive with the child is recommended in any case.
Fortunately, the vast majority of manufacturers not only specify the age range for which their products should be suitable, but now also usually specify a range of body sizes for which the bike is suitable. The stem and seat post length can sometimes be fine-tuned.
3. weight, equipment & price of the children's mountain bike
Even if small bikes with rigid forks are often cheaper, many good children's mountain bikes with 24-inch wheels or larger only start at a list price of just under 1000 euros. It's understandable that this initially pains some parents. But the joy of movement and a passionate hobby of the offspring are not bad points for a sustainable investment, are they?
Families can also find suitable offers on the second-hand market. However, ultra-bargains are also becoming increasingly rare among second-hand bikes, and good children's mountain bikes are relatively stable in value. But they are also robust enough to last several generations. This also means that once the kids' bike has become too small, it may be easy to sell on again.
As a rule, the price has a not insignificant influence on the weight of a small bike. In order to achieve similar riding characteristics to an 80-kilo adult on a 13-kilo MTB, children weighing 40 kilos would need a 7.5-kilo bike.
This ratio is even more dramatic for smaller children. Nevertheless, such light bikes unfortunately remain a utopia in most cases. Either way, the weight of a children's mountain bike should be as light as possible!
When equipping a children's mountain bike, it's not just about weight and price, but above all about ergonomics. Only when small children's hands have a firm grip on the handlebars and can operate the brakes without any problems will they be safe and have fun off-road.
Parents should make sure that the brake levers are easy to adjust and that the grips are thin. Good children's bikes also have crank lengths adapted to the rider's height and a large saddle height adjustment range.
Speaking of which, more and more manufacturers are now installing height-adjustable seat posts on children's bikes, known as dropper posts. Although these provide more safety on tours, they naturally also weigh more on the scales and at the checkout. With special attachment parts for children you are most likely to find a suitable bike.
Jan Timmermann
Editor
