Shimano 105 FC-RS520 Crankset - 172.5mm 12-Speed 50/34t 110 Asymmetric BCD Hollowtech II Spindle Interface BLK CheckoutTitle=Praxis Works Zayante Carbon-S Cranks The narrow-wide chainring is designed

The narrow-wide chainring is designed to retain the chain without the need of a chain device

Taper-Cast (TC) legs with reverse arch and integrated fender mounts

Smooth reliable Igus internal bearings and seal system ensure lasting performance mile after mile

Photo for color and material reference only Tooth Count 17 Size 3/32''

Shimano 105 FC-RS520 Crankset - 172.5mm 12-Speed 50/34t 110 Asymmetric BCD Hollowtech II Spindle Interface BLK CheckoutTitle=Praxis Works Zayante Carbon-S Cranks The narrow-wide chainring is designedThe 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