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 177.5Key Features:8-bolt interface compatible with power and non-power AXS spiders and integrated chainrings,Available in DUB™ and GXP® spindle options,Hollow Exogram™ carbon arms,Available in 165, 167.5, 170, 172.5, 175 and 177.5 lengths,.Specifications:Speeds: n/a,BB Compatibility: All SRAM Road DUB BBs,Chainring Size: No rings,Crank arm length: 165mm, 167.5mm, 170mm, 172.5mm, 175mm, 177.5mm,Chainline: n/a,BB Spindle Interface: DUB,Chainring material: No rings,Guard: No Guard,Bolt Circle Diameter (BCD): n/a,Crank arm material: Carbon,Color (Crank arm): Natural carbon.