Pairing the durable and smooth dub™ bottom bracket platform with hollow carbon exogram™ arms, the SRAM red® crankarm assembly is light, strong and elegant. It can be paired with any SRAM axs™ spider or integrated chainring, with or without power. Available in lengths from 165 to 177.5Things to remember8-bolt interface compatible with power and non-power axs spiders and integrated chainringsavailable in dub™ and gxp® spindle optionshollow exogram™ carbon armsavailable in 165, 167.5, 170, 172.5, 175 and 177.5 lengthsSpecificationsspeeds: n/abb compatibility: all SRAM road dub bbschainring size: no ringscrank arm length: 165mm, 167.5mm, 170mm, 172.5mm, 175mm, 177.5mmchainline: n/abb spindle interface: dubchainring material: no ringsguard: no guardbolt circle diameter (bcd): n/acrank arm material: carboncolor (crank arm): natural carbon