Shimano 105 FC-RS520 Crankset - 172.5mm 12-Speed 50/34t 110 Asymmetric BCD Hollowtech II Spindle Interface BLK MFPN=00.4118.419.028 Smooth siped tread rolls fast

Smooth siped tread rolls fast and grips the road well in wet conditions

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14 gauge Length 178 Color Black Thread Diameter 2

Featuring an aerodynamically optimized 40mm rim depth front and rear with a 25mm internal rim width the AR40 is designed to deliver ultimate versatility for the road ride and racer looking for performance on and off-road

Shimano 105 FC-RS520 Crankset - 172.5mm 12-Speed 50/34t 110 Asymmetric BCD Hollowtech II Spindle Interface BLK MFPN=00.4118.419.028 Smooth siped tread rolls fastThe 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) 172. 5 Crank Intended Use Road Drivetrain Speeds 12 BB Included No Pedal Spindle 9 16" Spindle Interface