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Cube Acid 240 Hybrid Rookie Pro 400X kids electric mountain bike with Bosch SX motor, 400Wh battery, Shimano gears and hydraulic disc brakes. Lightweight 24” junior e-MTB.

Cube Acid 240 Hybrid Rookie Pro 400X kids electric mountain bike with Bosch SX motor, 400Wh battery, Shimano gears and hydraulic disc brakes. Lightweight 24” junior e-MTB.

Cube

2026 Cube Acid 240 Hybrid Rookie Pro 400X Kids Electric Bike - ActionTeam

£1,999.00
Pre-Order

With Pre-Order, you can purchase the latest items added to our store in advance of them arriving with us.

Your Pre-Order is prioritised (at no additional charge); meaning that as soon as the product arrives with us, we can wrap it straight back up; ready for collection via Click & Collect or despatch to you — it often never even hits the stock room shelves!

Pre-Launch

With Pre-Launch, the date when we expect to receive the product ourselves is still a little too hazy to be confident in accepting Pre-Orders.

So, instead, you can submit your email address against the item you are interested in and we will email you as soon as stock arrives on the system.

Estimated Delivery & Collection Dates

Estimated Delivery & Collection Dates are given on Pre-Order and Pre-Launch products. They are for indication purposes only and can change at any time without notice.

The dates we provide are based on indications given by our suppliers. Whenever we get updated information from our suppliers we will endeavour to update the Estimated Delivery & Collection Dates provided on product pages.

We estimate this will be ready for despatch to you or collection via Click & Collect on Undetermined

2026 Cube Acid 240 Hybrid Rookie Pro 400X Kids Electric Bike - ActionTeam

Season:2026

Brand:Cube

Code:11510024

The Cube Acid 240 Hybrid Rookie Pro 400X Kids Electric Mountain Bike is a premium 24-inch children’s e-MTB designed for young riders who want to explore trails with confidence and keep up with family rides. Combining Bosch SX motor technology, a lightweight aluminium frame, and trail-ready components, this kids electric mountain bike delivers performance, safety, and fun in one complete package.

Finished in the striking ActionTeam colourway, this junior e-mountain bike brings adult-level engineering to smaller riders.

  • Bosch SX lightweight e-bike motor (55Nm torque)
  • Integrated 400Wh battery
  • Compatible with Bosch PowerMore 250Wh range extender
  • 24-inch kids electric mountain bike frame
  • SR Suntour suspension fork (80mm travel)
  • Shimano Cues 1x9 drivetrain
  • Shimano hydraulic disc brakes
  • Schwalbe 2.1” MTB tyres
  • Boost rear axle and UDH hanger
  • Dropper-post ready frame
  • SIC 2.0 carrier compatible
  • Includes kickstand
  • ActionTeam colourway

Lightweight Bosch SX Motor & 400Wh Battery

At the heart of the bike is the Bosch SX lightweight e-bike drive system, delivering up to 55Nm of pedal assistance with a maximum assisted speed of 20km/h. The integrated 400Wh battery sits neatly inside the frame for balanced handling and a clean look. The system is also compatible with the Bosch PowerMore 250Wh range extender, ideal for longer rides and bigger adventures.

This makes the Cube Acid 240 Hybrid Rookie Pro a perfect kids Bosch electric mountain bike for trail riding, family rides, and skill progression.


Designed Specifically for Young Riders

The lightweight aluminium frame features Advanced Internal Cable Routing, a Boost rear axle, and a UDH gear hanger, bringing the same durability and design quality found on Cube’s adult e-MTB range. The frame is also dropper-post ready and SIC 2.0 carrier compatible, adding versatility for everyday riding.

Careful sizing ensures the bike fits smaller riders perfectly, including 19mm-diameter handlebars and shorter cranks, improving control and comfort.


Trail-Ready Components

This 24” kids electric mountain bike is equipped with quality MTB components designed for reliability and performance:

  • SR Suntour suspension fork with 80mm travel
  • Shimano Cues 1x9-speed drivetrain
  • Shimano hydraulic disc brakes
  • Schwalbe 2.1” mountain bike tyres
  • Integrated kickstand

Together, these components create a confidence-inspiring kids e-MTB capable of tackling trails, gravel paths, and everyday adventures.


The Cube Acid 240 Hybrid Rookie Pro 400X Kids e-Bike is the ideal choice for young mountain bikers who want the power of Bosch electric assistance in a lightweight, properly scaled trail bike.

Technical Information
  • Frame
    Aluminum Superlite, Agile Ride Geometry, Boost 148, UDH™, Integrated Battery, Advanced Internal Cable Routing, Kickstand/Fender/Carrier Mounting Points
  • Size
    24"
  • Suspension fork
    Suntour XCT DS, Straight, 80mm
  • Drive unit
    Bosch Drive Unit Performance SX 55Nm (BDU31)
  • Remote
    Bosch Purion 200 with Integrated Display
  • Battery
    Bosch CompactTube 400
  • Charger
    Bosch 2A
  • Brake system
    Shimano BR-MT200, Hydr. Disc Brake (160/180)
  • Rear derailleur
    Shimano Cues RD-U4000-GS, 9-Speed
  • Shifters
    Shimano Cues SL-U4010- Rapidfire-Plus
  • Crankset
    ACID MTB Hybrid Pro, 38T
  • Cassette
    Shimano Cues CS-LG300, 11-46T
  • Chain
    KMC eGlide
  • Stem
    CUBE Aluminium Lite
  • Handlebar
    CUBE KIDS 590mm, Ø 19mm
  • Grips
    Natural Fit Kids 19.0
  • Rims
    ACID ZX20, 32H, Tubeless Ready
  • Front hub
    Shimano HB-QC300, QR, Centerlock
  • Rear hub
    ACID Engineered By Newmen, 12mm, Boost, Centerlock
  • Tyres
    Schwalbe Rocket Ron Kevlar, 2.1
  • Saddle
    CUBE Kid
  • Seat post
    CUBE Performance Post, 31.6mm
  • Pedals
    CUBE PP MTB medium
  • Weight
    17,6 kg
As with any product, specification is subject to change without prior notification. You are advised to confirm current specification before buying. Please note that this bike does not come with pedals.
Sizing Information

This children's bike is a OneSize model suitable for kids up to the following maximum measurements:

HEIGHT: 124 - 141 cm

INSEAM: 57 - 66 cm

Please note this information is only a general recommendation. It cannot replace a personal consultation and test ride with us.


GEOMETRY

Size24"
Seat Tube335mm
Top Tube Horizontal506mm
Seat Angle75°
Head Tube Angle67°
Chainstays420mm
Head Tube100mm
Wheelbase1032mm
BB-Height to Hub50mm
Protrusion Height - 80mm668mm
Reach357mm
Stack555mm

ERGONOMICS

Size24"
Length Seat Post300mm
Diameter Seatpost31.6mm
Crank Length160mm
Diameter Tyre Maximum640mm
Width Tyre Maximum63mm
Max. Insertion Depth Seat Post160mm

All values are given in millimetres or degrees.
Professional Opinion
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