Shimano 105 FC-RS520 Crankset - 165mm, 12-Speed, 50/34t, 110 Asymmetric BCD, Hollowtech II Spindle Interface, Black

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 Product Specifics Color: Black Rings: 50/34 Number of Chainrings: Double Crank Length (mm): 165 Crank Intended Use: Road Drivetrain Speeds: 12 BB Included: No Pedal Spindle: 9/16" Spindle Interface Type: Shimano Hollowtech II Chainring BCD: 110 Shimano Asymmetric Chainline/Hub Compatibility: 135/142 Road Disc Hubs > 415 mm Chainstay Today's Stock Status 10+ Available to ship in 2-4 Business Days UPC: 192790172415 EAN: Not available Manufacturer Part Number: Does Not Apply CK9889 181408-Q0-L