Btwin Rockrider 24 Expl 500
The Btwin Rockrider 24 Expl 500 is an excellent entry-level mountain bike that offers great value for money and will perform well on the trails. Designed for children aged 9 to 12, it is a much more capable bike than others in its price range that may come with heavy full suspension and complicated gearing. It is a reliable option for families where budget is a priority, as Decathlon’s in-house brand is known for durable and accessible bikes.
The bike focuses on the features that matter for this age group, with a simple yet effective 7-speed drivetrain and an Easytrigger shifter that simplifies gear changes. The sturdy steel frame and 50mm of front suspension are perfect for tackling mixed terrain like paths, trails, and gravel. It also comes with all-terrain lugged tires for good traction and control.
For parents, a great feature is the quick-release front wheel, which makes the bike easier to transport in the car. It’s a bike that gives children a gentle introduction to off-road riding without being overly complicated or heavy. We are impressed with the quality of bikes in the BTWIN range, and this is a great option if you’re looking for a good off-road bike that won’t break the bank. You can also Read our comprehensive guide to Btwin kids’ bikes to learn more about the brand.
BTwin 14 Discover 100
The BTwin 14 is sold exclusively at Decathlon (who are huge in Europe), which probably explains the more continental style “step through” frame design, and the ability to deliver this bike at such a low price.
The frame is steel, which usually means a very heavy bike. However, the style of this one, with the low step over and lack of cross bar helps keep the weight down to 8.7kg.
This is still a lot heavier than the more expensive aluminium framed 14″ wheel bikes – but it’s a lot less than the 10kg plus bikes you get elsewhere, and it has “proper” tyres – beware other 14″ wheel cheap bikes with foam or plastic tyres.
The very low frame itself will be easy for children to get on and off – especially important for children who would struggle to lift their leg over a higher frame. The braking system is designed specifically for smaller hands.
The bike comes with front and rear lights too, plus the 500 model has mudguards fitted, which the 100 model doesn’t.
The stabilisers unscrew easily – although if your child isn’t ready to pedal we’d recommend a balance bike instead.
Btwin 16″ Discover 100
The B’TWIN Discover 100 16″ Kids’ Bike is designed for children aged 4 to 6 years, typically measuring between 105 cm and 125 cm tall. It’s ideal for first-time riders graduating from balance bikes to pedals.
It features a steel frame that’s built to be simple, sturdy and easy to ride, helping little cyclists gain confidence on their early adventures.
This model has a low step-over frame, which makes it much easier for young riders to get on and off the bike independently. The adjustable handlebar and saddle height allow the bike to grow with your child, and it’s also compatible with stabilisers and child-friendly accessories like baskets and bells.
Priced at £139.99, the Discover 100 represents excellent value for money, offering a well-designed, child-friendly bike at an affordable price.
We haven’t reviewed this specific bike, but on Decathlon’s site, it holds an average rating of 4.7 out of 5 based on 84 reviews, with many parents giving 5/5 scores for compatibility, ergonomic design, preparation (assembly), and overall value. We have however reviewed a number of BTwin bikes and have always been impressed with the value for money they offer.
