Key features

Bosch Performance CX Gen 5 motor (120 Nm) delivers confident power on steep climbs and technical terrain
Bosch PowerTube 800 Wh battery sits fully integrated in the frame, keeping your range high and your silhouette clean
Shimano XT Di2 12-speed electronic shifting — precise, instant gear changes with a light touch, even in gloves
Fox 34 Float AWL fork (100 mm travel) tuned specifically for e-bikes to handle the extra speed and weight
Shimano XT 4-piston hydraulic disc brakes (203/203 mm) provide reliable stopping power on long descents
Artline finish — hand-painted and individually applied on each frame for a one-of-a-kind look

Cube Reaction Hybrid SLX 800

A hardtail e-MTB built to tackle any trail — with the components to prove it.

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 demanding off-road terrain. The Aluminium Superlite frame houses the Bosch PowerTube 800 Wh battery fully inside the downtube, keeping the centre of gravity low and the aesthetic clean. The Bosch Performance CX Gen 5 motor delivers up to 120 Nm of torque — enough to make steep climbs feel manageable and technical sections feel fluid.

Shifting is handled by Shimano XT Di2, a fully electronic 12-speed drivetrain. Rather than pulling a cable, the system moves the derailleur electronically for instant, perfectly timed shifts under load. The Shimano Deore Di2 SW-M6250-IR lever requires minimal finger pressure, making it easy to use in any conditions. The 10-51T cassette covers a wide gear range to suit everything from long climbs to flat-out descents.

The Fox 34 Float AWL fork with 100 mm of travel is e-bike optimised — engineered to cope with the additional weight and higher speeds that electric assistance brings. Stopping power comes from Shimano XT BR-M8120 4-piston hydraulic disc brakes with 203/203 mm rotors, offering strong and consistent braking in wet or dry conditions. Ride data and motor settings are managed through the Bosch Kiox 500 display, which connects to the eBike Flow app for personalised motor tuning.

The Artline colourway features a finish that is hand-painted and individually applied to each frame — a level of craft that stands out at this price point. The frame also includes mounting points for a kickstand, mudguards and a rear rack, giving this trail bike genuine everyday versatility.

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.

Fox 34 Float AWL, 2-Position Sweep-Adjust RAIL Damper, Tapered, 15x110mm, E-Bike Optimized, 100mm

The fork designed for city and road e-bikes. The Fox 34 Float AWL with RAIL Damper 2-position Sweep-Adjust shock absorber is a fork specially designed to meet the particular requirements of electric bicycles — higher mass, high torques, intensive use. With 100mm of travel, it is optimized for electric trekking bikes, electric gravel bikes and assisted urban bikes, where comfort and control take precedence over pure trail performance. The RAIL Damper system with 2-position Sweep-Adjust allows you to easily switch between a soft open position for uneven paths and a firmer position for smooth roads — a quick, intuitive adjustment that maximizes pedaling efficiency. The E-Bike Optimized designation means that the fork has been reinforced and recalibrated to support the additional weight and specific constraints of everyday e-bikes.