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2026 Cube Reaction Hybrid SLX 800 eMTB with Bosch CX motor & 800Wh battery. Shimano XT, Fox 34 fork & dropper post. Powerful electric mountain bike.
2026 Cube Reaction Hybrid SLX 800 eMTB with Bosch CX motor & 800Wh battery. Shimano XT, Fox 34 fork & dropper post. Powerful electric mountain bike.
Cube

2026 Cube Reaction Hybrid SLX 800 Electric Mountain Bike - Silver Dust

£3,499.00
Pre-Order

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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 Reaction Hybrid SLX 800 Electric Mountain Bike - Silver Dust

Season:2026

Brand:Cube

Code:108600601602SILDUSTCLR

2026 CUBE Reaction Hybrid SLX 800 Electric Mountain Bike | Bosch CX 800Wh eMTB with Shimano XT & Fox 34 Fork


The Cube Reaction Hybrid SLX 800 Electric Mountain Bike is a high-performance eMTB designed for riders who want to explore further, climb easier, and tackle challenging trails with confidence. Combining advanced Bosch motor technology, premium components, and CUBE’s sleek frame design, this electric mountain bike delivers power, control, and versatility for every adventure.

  • Bosch Performance Line CX motor for powerful, smooth pedal assistance
  • 800Wh integrated PowerTube battery for extended range
  • PowerMore-ready (optional +250Wh range extender compatibility)
  • Shimano XT 12-speed drivetrain for precise shifting
  • Shimano XT 4-piston hydraulic disc brakes for powerful stopping performance
  • Fox 34 Float AWL suspension fork for superior trail control
  • Newmen Performance 30 wheels with Schwalbe Smart Sam 2.6” tyres
  • Remote dropper post for improved handling on descents
  • Integrated cable routing & seat clamp for a clean, modern look
  • X-Connect system for easy front light integration
  • Compatible with ACID mudguards and luggage carrier
  • Size Split system for the perfect rider fit

At the heart of the Reaction Hybrid SLX is the powerful Bosch Performance Line CX drive unit, paired with a fully integrated 800Wh PowerTube battery. This combination provides smooth, quiet pedal assistance and exceptional range, making long-distance trail riding and steep climbs more accessible than ever. The frame is also PowerMore-ready, allowing you to expand capacity with an additional 250Wh battery for extended rides.

The bike’s clean, modern aesthetic is achieved through integrated cable routing, a concealed battery, and a built-in seat clamp. It’s also designed with practicality in mind, featuring compatibility with ACID mudguards, luggage carriers, and an X-Connect system for easy front light integration.


Premium Components for Trail Performance

The Reaction Hybrid SLX 800 is equipped with a high-end drivetrain and braking system from Shimano, including XT 12-speed gears and XT 4-piston hydraulic disc brakes. This setup ensures smooth, precise shifting and powerful, reliable braking in all conditions.

Up front, the Fox Racing Shox 34 Float AWL suspension fork delivers outstanding control and comfort, absorbing bumps and maintaining steering precision on technical terrain.

The Newmen Performance 30 wheelset is paired with Schwalbe Smart Sam 2.6” tyres, providing excellent grip, traction, and ride comfort across mixed surfaces. A remote dropper seatpost adds confidence and control on steep descents and technical trails.


Built for adventure, this electric mountain bike makes the inaccessible accessible. Whether you're tackling steep climbs, exploring forest trails, or enjoying long-distance rides, the Reaction Hybrid SLX combines cutting-edge e-bike technology with reliable, high-performance components to deliver an exceptional riding experience.

Technical Information
  • Frame
    Aluminium Superlite, Gravity Casting Technology, Agile Ride Geometry, Boost148, Fully Integrated Battery, Advanced Internal Cable Routing, 1.5 Headtube, Kickstand/Fender/Carrier Mounting Points
  • Size
    Classic: Size Split: 27.5: S // 29: M, L, XL, XXL, Trapeze: Size Split: 27.5: S // 29: M, L, XL, Easy Entry: 27.5: S, M, L, XL
  • Suspension fork
    Fox 34 Float AWL, 2-Position Sweep-Adjust RAIL Damper, Tapered, 15x110mm, E-Bike Optimized, 120mm (27.5: 100mm)
  • Drive unit
    Bosch Drive Unit Performance Line CX max. 100Nm (BDU38)
  • Remote
    Bosch LED Remote
  • Battery
    Bosch PowerTube 800
  • Display
    Bosch Kiox 500
  • Charger
    Bosch 4A
  • Brake system
    Shimano XT BR-M8220, Hydr. Disc Brake (203/203)
  • Rear derailleur
    Shimano XT RD-M8100-SGS, ShadowPlus, 12-Speed
  • Shifters
    Shimano XT SL-M8100-IR, 12-Speed
  • Crankset
    ACID MTB Hybrid Pro, 38T
  • Cassette
    Shimano XT CS-M8100, 10-51T
  • Chain
    KMC e12
  • Chain guide
    Reverse Flip-Guide E-Chain Guide, Direct Mount, I-Plate
  • Headset
    ACROS AZF-1034, ICR (Integrated Cable Routing), Top Zero-Stack 1 1/2" (ZS 56mm), Bottom Zero-Stack 1 1/2" (ZS 56mm), X-Connect Interface
  • Stem
    CUBE Performance Stem E-MTB 35, FPI-Link
  • Handlebar
    CUBE Rise Trail Bar 35
  • Grips
    ACID Hybrid Perform
  • Wheelset
    Newmen Performance 30 base/strong, 28/32 Spokes, 15x110mm / 12x148mm, Tubeless Ready
  • Tyres
    Schwalbe Smart Sam, Performance, Kevlar, 2.6
  • Saddle
    ACID Sequence 160
  • Seat post
    CUBE Dropper Post, Handlebar Lever, Internal Cable Routing, 31.6mm
  • Pedals
    ACID PP Trekking
  • Weight
    24.3 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

SizeSMLXLXXL
Seat Tube370mm405mm450mm495mm545mm
Top Tube Horizontal587mm607mm627mm647mm667mm
Seat Angle74.5°74°74°74°74°
Head Tube Angle67.5°67.5°67.5°67.5°67.5°
Chainstays456mm470mm470mm470mm470mm
Head Tube159mm110mm120mm130mm145mm
Wheelbase1157mm1176mm1198mm1218mm1240mm
BB-Height to Hub46mm65mm65mm65mm65mm
Protrusion Height - 80mm755mm778mm782mm787mm824mm
Reach409mm420mm437mm455mm471mm
Stack646mm653mm662mm674mm685mm

ERGONOMICS

SizeSMLXLXXL
Length Seat Post361mm361mm425mm425mm425mm
Diameter Seatpost31.6mm31.6mm31.6mm31.6mm31.6mm
Angle Stem12°12°12°12°12°
Crank Length165mm175mm175mm175mm175mm
Diameter Tyre Maximum722mm760mm760mm760mm760mm
Width Tyre Maximum66mm66mm66mm66mm66mm
Stem Length60mm60mm60mm60mm60mm
Handlebar Width740mm740mm740mm740mm740mm
Stroke Seatpost100mm100mm130mm130mm130mm
Max. Insertion Depth Seat Post205mm250mm280mm230mm270mm

All values are given in millimetres or degrees.
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