SRAM XX1 Rear Derailleur - 11 Speed Medium Cage Black CheckoutTitle=Ritchey Comp Bigfoot Pedals - Platform 7 lighting modes for day

7 lighting modes for day and night use (Steady Zoom SteadyPulse® Bzzz Flash Triple Flash DayLightning® Flash Random Flash)

Pre-set torque valve

Model Reverb Description Brass Keys

The gasket and valve core are replaceable for extended product usability

Multiple pockets for easy organization

SRAM XX1 Rear Derailleur - 11 Speed Medium Cage Black CheckoutTitle=Ritchey Comp Bigfoot Pedals - Platform 7 lighting modes for dayProfessional 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