Shimano FC-RS520 Crankset

The Shimano 105 FC-RS520 is a 2-piece, 4-arm crank that's compatible with modern disc brake road frames. 4-arm crankset for 12-speed drivetrain. Compatible with frames of O.L.D. 135mm and 410mm chainstay length. 44.5mm chainline. 150mm Q-factor. Compatible with HG 12-speed chains.