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Cube Bikes

Cube 2021 Reaction Pro

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With the Reaction Pro, we wanted the perfect blend of function, reliability and performance. So we started with Shimano’s SLX and XT components for the 1×12 transmission, because they offer a huge range and an unparalleled reputation for precision. We added Shimano XT hydraulic disc brakes for superb all-weather stopping performance, whether you’re out in the hills or battling across town. And finished with the RockShox Judy Silver air fork, which combines easy adjustability with trail-smoothing alacrity.

Tech Specs


Brand Cube Bikes
Frame HPA, High Performance Aluminium
Fork RockShox Judy Silver TK Air, 100mm, PopLoc
Drivetrain Shimano XT, 10-51T, 1x12
Brakes Shimano XT BR-M8100
Wheels CUBE EX21, 32H, Disc, Tubeless Ready
Weight 13,1 kg
Wheel Size Split Size Split: 27.5: S // 29: M, L, XL, XXL
Seatpost CUBE Performance Post, 27.2mm



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