XX1 Rear Derailleur tights and elasticated cuffs ensure a

and elasticated cuffs ensure a secure fit no matter how hard you push

No push or pull is required to open and close the Heart ValveTM

just slide our 160 Wh Range Extender into your bottle cage—for 50% more range

Every detail

XX1 Rear Derailleur tights and elasticated cuffs ensure aProfessional grade derailleur built with carbon fiber and aluminum, featuring roller clutch pulley cage and cage lock feature for easy wheel installation. Wide tooth, narrow tooth pulley wheel maximizes chain control by fitting inner and outer chain links perfectly X Horizon design maintains constant chain gap across all gears and eliminates ghost shifting Roller bearing clutch eliminates derailleur bounce and chain slap Cage Lock feature simplifies