SRAM RED Crankset - 167.5mm 2x 12-Speed 50/37t 8-Bolt Direct Mount DUB Spindle Interface Natural Carbon E1 MFPN=00.5315.018.051 and glued seams reduce friction

and glued seams reduce friction and the risk of unpleasant rubbing

and 122mm lengths

Color Black Ring Position/Type Single Tooth Count 36 Drivetrain Speeds 12 Chainring BCD Direct Mount Bosch Designed for ebike Yes Defined Color Black Direct Mount Type Direct Mount Bosch Gen 4

up to "40mm measured" (frameset clearance) but limited to "36mm measured" by the front derailleur

SRAM RED Crankset - 167.5mm 2x 12-Speed 50/37t 8-Bolt Direct Mount DUB Spindle Interface Natural Carbon E1 MFPN=00.5315.018.051 and glued seams reduce frictionOptimized layup drops further grams from the hollow carbon arms X Range gearing minimizes cadence change during a front shift One piece 2x chainring results in a lighter weight, stiffer, more durable crankset 29 g lighter than the previous generation Crisp and accurate front shifts Ultra light hollow carbon fiber crankarms DUB bottom bracket adds durability and simplicity Can be upgraded to a power meter SRAM Model ID: FC RED E1 TECH SPECS Chainline