With a single, chain-retaining ring mounted to the cranksets outer ring position, it pairs perfectly with the rest of the Sword 1x drivetrain.Sword Black cranks are suitable for use with a square taper bottom bracket axle (not included). This crank uses the same chainring standards as the original Sword but adds a new lower price point. FeaturesWide design optimised for 50mm chainlinecompatible with square taper bottom brackets1x chain-retaining chain ringSpecificationsChain Width: 9/10 SpeedChainring Count: 1xChainrings: 42T or 40TBCD: 110/80 AsymmetricBB Type: Square Taper 68x113mmChainline: Wide 50mmArm Lengths: 165, 170, 172.5, 175