SRAM Rear Derailleur Red Medium Cage 11-speed Max 32T C2Top 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 Color: Black Largest Cog: 32 Rear Derailleur Mount Type: 10x1 Standard Chain Wrap Capacity (teeth): 37 Cage Length: Medium Rear Der Shifter Compatibility: SRAM Exact Actuation Drivetrain Speeds: 11