Shimano 105 FC-RS520 Crankset - 170mm, 12-Speed, 50/34t, 110 Asymmetric BCD, Hollowtech II Spindle Interface, Black bottom-bracket-bearing-retainer 5 / 3 / 4

5 / 3 / 4 / 5 / 6 / 8 / 10mm Allen bits T6 / T7 / T8 / T9 / T10 / T15 / T20 / T25 / T30 Torx bits Torque Wrench / Ratchet tool / Speed Sleeve / Finger Bit

Truing Stand parts and Accessories designed to maintain or improve your Park Tool truing stand

which is limited to trail riding

The DUB thread ring is and will continue to be shiny silver

Shimano 105 FC-RS520 Crankset - 170mm, 12-Speed, 50/34t, 110 Asymmetric BCD, Hollowtech II Spindle Interface, Black bottom-bracket-bearing-retainer 5 / 3 / 4The 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 Item Specifications BB Included No Chainline Hub Compatibility 135 142 Road Disc Hubs > 415 mm Chainstay Chainring BCD 110 Shimano Asymmetric Color Black Crank Intended Use