Overview
This product is best for: Young riders progressing onto technical trails and wanting a genuine full-suspension mountain bike.
The main advantage is: A true full-suspension platform designed specifically around younger riders.
Choose this if: Your child is ready for trail riding, trail centres and more challenging off-road terrain.
Avoid this if: Riding is mainly on roads, cycle paths or family leisure rides.
The Cube Stereo 240 ONE Actionteam brings Cube's full-suspension mountain bike technology to younger riders. Built around a lightweight aluminium frame, 24-inch wheels and 120mm suspension travel, it delivers genuine trail-bike capability in a size designed specifically for children. The suspension, geometry and components have been selected to suit lighter riders while maintaining the performance expected from a serious mountain bike.
Best For
Trail riding, trail centres, forest singletrack, family mountain biking adventures and developing off-road skills.
Who Is This For
Ideal for young riders looking to progress beyond entry-level bikes and develop confidence on technical terrain.
Rider Profile
Suitable for enthusiastic young mountain bikers who want a capable full-suspension bike that mirrors the performance and appearance of adult trail bikes.
How This Fits Your Setup
The Stereo 240 ONE is ideal for families who regularly ride trail centres, woodland trails and natural off-road routes. It pairs well with youth MTB helmets, gloves and protective equipment.
Use our online bike sizing calculator or visit our bike fitting service for personalised sizing advice.
Key Features
- 24-inch wheel platform
- 120mm full suspension travel
- HPA Ultralight aluminium frame
- Manitou J-Unit air suspension fork
- SR Suntour rear shock
- Shimano Cues 1x9 drivetrain
- Magura hydraulic disc brakes
- Kids-specific geometry and suspension tuning
Real-World Performance
The Stereo 240 ONE is built to give young riders confidence on rough trails. The full-suspension design helps improve comfort and control over roots, rocks and uneven terrain, while hydraulic disc brakes provide dependable stopping power in all weather conditions. The 1x9 drivetrain keeps gear changes simple and intuitive for younger riders. :contentReference[oaicite:0]{index=0}
Usage Scenarios
Trail centres, woodland riding, family MTB holidays, local trail networks and skills progression rides.
Comparison
Compared with hardtail kids mountain bikes, the Stereo 240 ONE offers improved comfort, traction and control thanks to its full-suspension platform. Compared with adult trail bikes, it is proportioned specifically for younger riders.
Comparison Within The Range
Lower model: Cube Reaction 240 — hardtail platform offering lower weight and simpler maintenance.
Current model: Cube Stereo 240 ONE — full-suspension trail bike with 120mm travel and trail-focused specification.
Higher model: Cube Stereo ONE22 Rookie — larger platform designed for older and taller developing riders.
Pros and Cons
Pros: Full suspension, quality brakes, lightweight frame, trail-focused geometry and youth-specific design.
Cons: More specialised than a general-purpose kids bike.
Quick Spec Summary
Brand: Cube
Model: Stereo 240 ONE Actionteam
Category: Kids Full Suspension Mountain Bike
Wheel Size: 24 Inch
Travel: 120mm
Drivetrain: Shimano Cues 1x9
Detailed Specifications
Frame: HPA Ultralight, Advanced Hydroform, Triple Butted, ETC 4-Link
Frame Material: Aluminium
Travel: 120mm
Fork: Manitou Machete J-Unit Air
Fork Travel: 120mm
Rear Shock: SR Suntour Edge R
Wheel Size: 24 Inch
Drivetrain: Shimano Cues 1x9 Speed
Rear Derailleur: Shimano Cues RD-U4000-GS
Shifter: Shimano Cues SL-U4010 Rapidfire Plus
Cassette: Shimano Cues CS-LG300 11-46T
Chain: KMC xGlide
Crankset: Cube AR SLT 30T 130mm
Brakes: Magura MT Thirty Hydraulic Disc Brakes
Brake Configuration: 180mm Front / 160mm Rear
Wheelset: ACID SLX 25 Tubeless Ready
Tyres: Schwalbe Hans Dampf Addix Performance 2.35
Handlebar: SDG Slater JR 660mm
Stem: Cube Performance Stem SLX 31.8mm
Saddle: Cube Kid
Seatpost: Cube Performance Post 30.9mm
Weight: 12.4kg
Is This The Right Product
Choose this bike if your child regularly rides trails and is ready for a genuine full-suspension mountain bike.
Who should avoid it: Riders mainly cycling on roads, cycle paths or school journeys may be better served by a hardtail model.
What You'll Need
A correctly fitted youth MTB helmet, gloves, hydration bottle and trail-ready footwear will help maximise comfort and confidence.
Ownership Experience
The Stereo 240 ONE gives young riders access to many of the same technologies used on adult Cube mountain bikes, helping develop confidence and technical riding skills.
Local Riders
If you're searching for a bike shop near Derby for kids mountain bikes, CycloMonster in Derby DE21 7LX offers local support, Click & Collect and expert advice for families across Nottingham, Burton upon Trent, Loughborough and Chesterfield.
Local Availability
Visit in-store for sizing advice, local support, workshop services and Click & Collect options.
Bike Sizing Guidance
Cube positions the Stereo 240 platform for riders approximately 118cm and taller, typically covering many riders aged around 7–11 years depending on individual height and experience.
Use our online bike sizing calculator and professional fitting service for personalised recommendations.
Why Buy
The Cube Stereo 240 ONE delivers genuine full-suspension trail performance in a package designed specifically for younger riders, helping build confidence and capability off-road.
Help Young Riders Progress Further
Order the Cube Stereo 240 ONE Actionteam today or visit CycloMonster for expert sizing advice and kids MTB support.