Key features

Bosch Performance CX Gen 5 motor (120 Nm) delivers responsive assistance on steep climbs and demanding terrain
Integrated 800 Wh battery, expandable to 1,050 Wh with the PowerMore range extender for longer adventures
Shimano XT Di2 electronic 12-speed shifting: precise, cable-free, maintenance-light
Fox 34 Float AWL fork with 2-position RAIL Damper to switch between trail and efficient modes on the fly
Shimano XT 4-piston hydraulic brakes for controlled, progressive stopping power in all conditions
Dropper seatpost with remote lever so you can adjust your riding position without stopping

Cube Reaction Hybrid SLX 800

A hardtail e-MTB built for technical trails, with no shortcuts on the spec sheet.

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 riders who want to tackle varied trails with confidence and capable components. The Superlite aluminium frame houses the Bosch PowerTube 800 Wh battery internally, keeping the profile clean and the battery well protected from trail debris.

The Bosch Performance CX Gen 5 motor produces up to 120 Nm of torque, engaging smoothly and powerfully whether you're hitting a short punch climb or grinding up a long ascent. Ride data and assist modes are managed through the Bosch Kiox 500 display, which stays legible in bright sunlight. For multi-day adventures, the frame is PowerMore-ready, allowing you to add an extra 250 Wh for a total of 1,050 Wh.

The Fox 34 Float AWL fork features a 2-position Sweep-Adjust RAIL Damper, giving you a quick toggle between open trail and firm efficiency modes. The Shimano XT Di2 12-speed electronic drivetrain shifts cleanly and consistently without cables to stretch or adjust over time. Braking is handled by Shimano XT 4-piston hydraulic disc brakes, offering strong and modulated stopping power on descents.

Available in autumn'n'black across five frame sizes (S to XXL), the Reaction Hybrid SLX 800 suits riders looking for a well-rounded, trail-ready e-MTB with high-end componentry.

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.