Shimano 105 FC-RS520 Crankset - 170mm 12-Speed 50/34t 110 Asymmetric BCD Hollowtech II Spindle Interface BLK Spacing/Axle-B/O-NUT 3/8x26t The dual sided mechanical caliper

The dual sided mechanical caliper actuates the pads to provide even and precise clamping force for superior stopping power

grip color purple clamp color black length 134mm diameter 30mm

Color Black/Silver Ring Position/Type Chain Retaining Single Ring Tooth Count 34 Round or Oval Round Drivetrain Speeds 12 Offset 0 Material Aluminum Defined Color Black Defined Color Silver

(1) 10mm color gold package set/3

Shimano 105 FC-RS520 Crankset - 170mm 12-Speed 50/34t 110 Asymmetric BCD Hollowtech II Spindle Interface BLK Spacing/Axle-B/O-NUT 3/8x26t The dual sided mechanical caliperThe 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) 170 Crank Intended Use Road Drivetrain Speeds 12 BB Included No Pedal Spindle 9 16" Spindle Interface Type