Red 1x XPLR E1 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. Item Specifications: Chainring BCD, Direct Mount SRAM 8 Bolt, BB Included, No, Chainline, 47.5mm, Tooth Count, 42, Crank Spindle Diameter, 28.99mm, Crank Length (mm), 167.5mm, Interface, DUB, Crank Arm Material, Carbon, Pedal Spindle, 9/16'', Defined Color, Black, Drivetrain Speeds, 12/13, Type, Road Disc,.
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