Shimano 105 FC-RS520 Crankset - 170mm 12-Speed 50/34t 110 Asymmetric BCD Hollowtech II Spindle Interface BLK

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 drivetrainCompatible with frames of O.L.D. 135mm and 410mm chainstay length44.5mm chainline150mm Q-factorCompatible with HG 12-speed chains