Cube ltd pro 29 hardtail mountain bikecube takes the pro label seriously they started with a very light but stiff carbon frame and added some of the best components they could find including a 2x11 shimano xt drive group the reaction gtc pro is the weapon of choice for everything from fast trail blasts to flat out racing lightweight carbon hardtail frameyou can expect peerless performance from cubes carbon frame created with the innovative twin mould technique the lightweight carbon fram