Key features

Bosch Performance CX Gen 5 motor delivers responsive, natural-feeling assistance on climbs and technical terrain
800 Wh battery housed inside the frame for long-range rides without compromising the bike's profile
Shimano XT Di2 electronic shifting makes gear changes instant and effortless, even mid-effort
Fox 34 Float AWL fork with 120 mm travel and e-bike optimisation smooths out rough trails without feeling sluggish
Shimano XT hydraulic disc brakes with 203 mm rotors front and rear for reliable, modulated stopping power
Remote dropper seatpost lets you lower your saddle on the fly for better control on descents

Cube Reaction Hybrid SLX 800

A trail-ready hardtail e-MTB built around Bosch's most powerful drive system.

Available sizes

Select a size

4 299,00 €

Pay in 3× €1,433.00 at no extra cost with Alma

Or finance your bike

Renting individual131,19 €/month

Store availability

Liège · Out of stock Brussels · Out of stock

Free delivery

Delivered ready to ride

Easy returns within 14 days

2-year warranty on the motor

Secure payment

Description

The Cube Reaction Hybrid SLX 800 is a hardtail e-MTB designed for trail riding and varied terrain. As a hardtail — rigid rear, suspended fork — it keeps pedalling efficiency high while the front suspension handles the rough stuff. It's a versatile choice for riders who want capable off-road performance without the added complexity of a full-suspension setup.

The Bosch Performance CX Gen 5 motor sits at the heart of the drivetrain, providing smooth and powerful assistance whether you're grinding up a steep climb or accelerating out of a corner. The Bosch PowerTube 800 Wh battery integrates neatly into the downtube, keeping the frame clean and the weight centred. Ride data — speed, remaining range, assist mode — is all visible at a glance on the Bosch Kiox 500 display.

Shifting is handled by the Shimano XT Di2 RD-M8260-SGS electronic rear derailleur across 12 speeds. Di2 uses an electric actuator instead of a cable, meaning gear changes are consistently precise regardless of conditions or cable stretch over time. Paired with Shimano XT BR-M8120 hydraulic disc brakes running 203 mm rotors at both ends, stopping power is progressive and confidence-inspiring on long, steep descents.

The Fox 34 Float AWL fork offers 120 mm of travel with a two-position RAIL Damper that switches between open and firm modes — useful for toggling between climbs and technical sections without stopping. Newmen Performance 30 tubeless-ready wheels and Schwalbe Smart Sam 2.6" tyres round out a well-matched build suited to mixed trails and forest paths.

Bosch Gen 5 'Performance CX' - 120 Nm

The benchmark engine for riders who make no compromises. The 5th generation Bosch Performance Line CX is the trail engine par excellence: with 120 Nm of torque and assistance up to 25 km/h, it delivers raw and controlled power, capable of swallowing the most demanding slopes without ever flagging. Redesigned from the ground up, this 5th generation engine is more compact and lighter than its predecessors, while improving responsiveness. The response to pedaling is immediate and precise, with intelligent torque management that adapts to each variation in terrain - technical trails, steep climbs or chaotic paths, the CX knows no limit.

Bosch PowerTube 800 Wh

Uncompromising autonomy. The Bosch PowerTube 800 Wh is the battery that frees cyclists from the constraint of mileage. With 800 Wh of capacity, it pushes the limits of every outing — whether it's a long commute, a weekend getaway or a multi-day wilderness adventure. Integrated directly into the frame tube, the PowerTube disappears into the silhouette of the bike for a clean aesthetic and optimal protection against shocks and bad weather. Light for its capacity, it recharges quickly and pairs perfectly with all Bosch Smart System motors for intelligent energy management in real time.

Bosch Kiox 500

The screen for those who want to see everything. The Bosch Kiox 500 is the advanced version of the Kiox range — a larger, brighter and more comprehensive connected display, designed for cyclists who want to access all of their riding data without taking out their smartphone. Its enlarged display offers optimal readability in all conditions, whether in the middle of the forest or in full urban sunshine. Permanently connected to the eBike Flow app via Bluetooth, it centralizes navigation, performance data and customization of modes in one place. A clear interface, careful ergonomics and exemplary responsiveness - the Kiox 500 is the reference screen for long and demanding outings.

Shimano XT Di2 RD-M8260-SGS, 12-Speed, Electronic Shifting System

Electronic shifting conquers the trail. The Shimano A simple press of the button is enough for an instantaneous, silent and perfectly calibrated gear change, even in the middle of a recovery or on a chaotic section. The SGS (Super Extra Long) version offers the maximum screed capacity to cover the entire development range of the widest 12-speed cassettes. No more loose cables, no more misadjustments during outputs - the Di2 maintains absolute precision from the first to the last hour, without intervention. And thanks to Bosch eShift compatibility, it integrates natively into the Bosch VAE ecosystem for automatic gear changes based on cadence and terrain.