Shimano 105 FC-RS520 Crankset - 165mm 12-Speed 50/34t 110 Asymmetric BCD Hollowtech II Spindle Interface BLK MFPN=710-0179236050 The patent-pending layer-by-layer quality control

The patent-pending layer-by-layer quality control ensures minimal imperfections elevating your confidence to break the mold

The geometry of this frame is optimized for the modern aggressive riding style of today’s gravel riders

with up to 24 days of battery life

Model Monolithic Size 160mm Mount Center Lock Thickness 2

DCC - Dual Control Compound features two kinds of materials for speed and control hardness of 56A in the center and a lower 48A on the sides

Shimano 105 FC-RS520 Crankset - 165mm 12-Speed 50/34t 110 Asymmetric BCD Hollowtech II Spindle Interface BLK MFPN=710-0179236050 The patent-pending layer-by-layer quality controlThe 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 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