The haibike xduro dwnhll 80 electric mountain bike 2017 represents the pinnacle in evolution of emtb combining the ability to shred the downhills just as well as any gravity bike but with the ability to master steep technical and previously impossible to ride uphill climbs the powerful bosch performance cx drive unit combines with a spec that includes a rockshox boxxer rc fork shimano zee 10 speed drivetrain and a durable set of alex wheels this creates an extremely capable rid