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Cube Acid 240 Disc Kids Mountain Bike – Lightweight, Durable & Trail-Ready
Cube Acid 240 Disc Kids Mountain Bike – Lightweight, Durable & Trail-Ready
Cube

2026 Cube Acid 240 Disc Kids Mountain Bike - Galactic/Cyan

£399.00
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 Disc Kids Mountain Bike - Galactic/Cyan

Season:2026

Brand:Cube

Code:851520U24

The Perfect Kids Mountain Bike for Young Adventurers

The Cube Acid 240 Disc Kids Mountain Bike is built to give young riders the confidence, control, and excitement of a real mountain bike experience. Designed with the same high-quality materials and engineering as Cube’s adult range, this lightweight kids mountain bike combines performance, durability, and comfort, perfect for growing riders ready to explore off-road trails and family adventures.

Crafted from 6061 heat-treated, double-butted aluminium, the Acid 240 Disc offers the same strength and resilience as Cube’s full-size mountain bikes but with optimised geometry and proportions for children. The Agile Ride Geometry ensures stable, responsive handling, helping young riders build their skills safely while having fun on every ride.

With integrated disc brake mounts, a replaceable gear hanger, and both bottle cage and rack mounts, this kids MTB is practical, repairable, and ready for adventure.


Confidence, Control, and Real Trail Performance

The Cube Acid 240 Disc is designed for trail performance in a smaller package. Its Suntour suspension fork with smooth 60mm travel absorbs bumps and rough terrain, ensuring a comfortable, confidence-inspiring ride on tracks and trails.

Powerful hydraulic disc brakes, designed with child-friendly levers, provide dependable stopping power and easy control, even in wet or muddy conditions. Young riders can brake with confidence and safety no matter where their adventures take them.

The Shimano 8-speed drivetrain delivers smooth, reliable shifting and a wide gear range, perfect for tackling steep climbs or fast descents. Every component, from the junior-sized saddle to the ergonomic grips and handlebars, is built to fit smaller riders perfectly, ensuring maximum comfort and control on every ride.


Perfect for young trail riders, junior mountain bikers, and outdoor explorers, the Cube Acid 240 Disc brings professional-grade quality to a kids’ size. Its lightweight aluminium frame, responsive suspension, and precise disc brakes make it a true child’s hardtail mountain bike that’s ready for every terrain.

Whether it’s forest paths, gravel tracks, or hilly terrain, this 24-inch kids MTB gives your child the performance and safety they need to ride with confidence. The Cube Acid 240 Disc 2026 is not just a kids’ bike, it’s the start of a lifetime of off-road adventures.

Technical Information
  • Frame
    Aluminium Lite 6061
  • Size
    24"
  • Suspension fork
    SR Suntour SF20 XCT JR, 60mm
  • Brake system
    Shimano BR-MT200, Hydr. Disc Brake (160/160)
  • Rear derailleur
    Shimano RD-M3020, 8-Speed
  • Shifters
    Shimano SL-M315, Rapidfire-Plus
  • Bottom bracket
    Thun PASO-ML BSA
  • Crankset
    ACID 32T, 127mm with Chainguard
  • Cassette
    Sunrace CSM55,11-34
  • Chain
    KMC Z8.3
  • Headset
    CUBE FPH863, Semi-Integrated
  • Stem
    CUBE Aluminium Lite
  • Handlebar
    CUBE Aluminium Lite, 580mm
  • Grips
    ACID Kids
  • Wheelset
    ACID Pro DB-19, 28/28H, QR/QR
  • Tyres
    CUBE, 2.1
  • Saddle
    CUBE Kid
  • Seat post
    CUBE Aluminium Lite, 27.2mm
  • Pedals
    CUBE PP MTB
  • Bell
    ACID
  • Weight
    11,7 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

GEOMETRY

Size24"
Seat Tube309mm
Top Tube Horizontal512mm
Seat Angle72.4°
Head Tube Angle72°
Chainstays426mm
Head Tube108mm
Wheelbase969mm
BB-Height to Hub40mm
Protrusion Height - 80mm647mm
Reach349mm
Stack534mm

ERGONOMICS

Size24"
Length Seat Post300mm
Diameter Seatpost27.2mm
Crank Length127mm
Diameter Tyre Maximum639mm
Width Tyre Maximum60mm
Stem Length40mm
Angle Stem
Handlebar Width580mm

All values are given in millimetres or degrees.
Professional Opinion
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