The 2026 Cube Reaction Hybrid Race 800 in Polarlight’n’Prism is a masterclass in e-MTB engineering, blending a "show-bike" aesthetic with raw, uncompromising power. The Polarlight’n’Prism finish is a color-shifting marvel, transitioning through a spectrum of iridescent hues that make the frame appear to be made of liquid light. But the real story is under the hood: it features the new Bosch Performance Line CX (BDU38), delivering a staggering 120Nm of torque, effectively making it one of the most powerful climbing machines in the world.
Cube has fully embraced the future of shifting by equipping this model with the SRAM Eagle 90 Transmission. This "hangerless" wireless system mounts directly to the frame, providing indestructible shifting precision even under the massive load of that 120Nm motor. With the addition of the Bosch PowerTube 800 and premium Magura Louise 4-piston brakes, this isn't just a "Race" model by name—it is a purpose-built, long-range technical trail slayer.
Specifications Breakdown
E-Drive System
Motor: Bosch Performance Line CX (BDU38), Smart System, Max 120Nm Torque.
Battery: Bosch PowerTube 800 (Fully integrated, removable).
Remote/Display: Bosch LED Remote with X-Connect Interface (Kiox/Nyon compatible).
Frameset & Fork
Frame: Aluminium Superlite, Gravity Casting, Agile Ride Geometry, Boost148, Advanced Internal Cable Routing (ICR), 1.5" Headtube.
Fork: RockShox Recon Silver RL Air, Tapered, 15x110mm, 120mm Travel (27.5" wheels: 100mm).
Headset: Acros AZF-1034, ICR, Top/Bottom Zero-Stack 1 1/2".
Seatpost: Cube Dropper Post, Handlebar Lever, Internal Routing, 31.6mm.
Drivetrain & Brakes
Rear Derailleur: SRAM Eagle 90 Transmission (T-Type)
Shifters: SRAM Eagle 90
Brakes: Magura Louise Hydraulic Disc, 4-Piston Front / 4-Piston Rear.
Rotors: 203mm Front / 203mm Rear.
Crankset: Acid MTB Hybrid Pro, 38T.
Cassette: SRAM XS-1270, 10-52T.
Chain: SRAM GX Eagle Transmission (Flattop).
Wheels & Tires
Wheels: Acid Pro 30, 32H, Tubeless Ready, 15x110mm / 12x148mm.
Tires: Schwalbe Smart Sam, Active, 2.6".
Saddle: Acid Sequence 160.
Key Highlights
120Nm Bosch Powerhouse: The BDU38 motor is a game-changer. With 120Nm of torque, this bike doesn't just assist you; it conquers terrain that was previously unrideable. It provides instant, smooth power delivery that makes the steepest technical inclines feel like flat pavement.
SRAM Eagle 90 Transmission: This is the pinnacle of drivetrain durability. Because it is a "T-Type" system, the derailleur has no hanger and no adjustment screws. It is aligned perfectly to the axle, allowing for flawless shifting even when you are putting maximum 120Nm pressure through the pedals.
Magura Louise 4-Piston Brakes: The return of the "Louise" name brings heavy-duty stopping power. With 4-piston calipers and massive 203mm rotors at both ends, you have the thermal management and bite needed to shut down high speeds on heavy e-bike descents safely.
800Wh PowerTube: Combined with the high-efficiency Bosch system, this massive battery capacity allows for epic, multi-hour mountain adventures without the "range anxiety" that plagues smaller-battery units.
Advanced Integration (ICR): All cables enter through the Acros headset, keeping the Polarlight'n'Prism frame incredibly clean. This isn't just about looks; it protects the vital electronic and hydraulic lines from snagging on branches or being damaged in a crash.
Internal Dropper Post: The factory-fitted Cube dropper post allows you to instantly lower your center of gravity for steep descents, significantly increasing confidence and maneuverability in technical terrain.