SRAM Red E1 Aero

Single-ring drivetrain simplifies functionality and reduces weight Direct mount aero chainrings for better aerodynamics X-SYNC wide-tooth, narrow-tooth chainring technology provides maximum chain control SRAM Model ID: CR-XSNC-DM-E1 Attributes Narrow-Wide Design Yes BCD Direct Mount SRAM 8 Bolt Chainring Comp. SRAM FlatTop