Top-of-the-line rear derailleur with generous use of carbon fiber and titanium for maximum performance at minimal weight. Carbon fiber and aluminum construction. Ceramic bearing pulleys. Titanium hardware. Graphics match SRAM Red eTap electronic components. Item Specifications: Color, Black, Weight, 152, Largest Cog, 32, Chain Wrap Capacity, 37, Cage Length, Medium, keyword search, RD4621, Drivetrain Speeds, 11, Rear Der/Shifter Compatibility, SRAM Exact Actuation, Rear Derailleur Mount Type, 10x1 Standard,.
eBay