SRAM Red 1x XPLR E1 Crankset Speed: 12/13 Spindle: 28.99mm BCD: Direct Mount SRAM 8 Bolt 42 DUB 167.5mm Black Road Disc

Single-ring drivetrain simplifies functionality and reduces weight Non-aero direct mount chainrings from 38T to 46T can be swapped with a single tool SRAM X-SYNC wide-tooth, narrow-tooth chainring technology provides maximum chain control Ultra-light hollow carbon fiber crankarms DUB Wide bottom bracket adds durability and simplicity Can be upgraded to a power meter SRAM Model ID: FC-RED-1W-E1