Shimano GRX FC-RX610-1 Crankset - 170mm 12-Speed 40t 110 BCD Hollowtech II Spindle Interface BLK CheckoutTitle=Shimano Tiagra ST-4725/BR-4770 Mechanical Shift/Hydraulic Brake Lever and Caliper - Front Color Carbon Rise 20 Material

Color Carbon Rise 20 Material Carbon Upsweep 5 Defined Color Black Back Sweep (deg) 8 Bar Clamp Diameter (mm) 35

Bash rings that are mounted on the crankset are better supported than bash rings that are mounted to the frame or bottom bracket

Wide link design increases rigidity

Color Silver Rise 40 Material Aluminum Upsweep 5 Defined Color Silver Back Sweep (deg) 8

Shimano GRX FC-RX610-1 Crankset - 170mm 12-Speed 40t 110 BCD Hollowtech II Spindle Interface BLK CheckoutTitle=Shimano Tiagra ST-4725/BR-4770 Mechanical Shift/Hydraulic Brake Lever and Caliper - Front Color Carbon Rise 20 MaterialShimano GRX FC RX610 1 Crankset 170mm 12 Speed 40t 110 BCD Hollowtech II Spindle Interface Black. The Shimano FC RX610 crank balances weight savings optimized efficiency and an array of gearing options that cater to the segmented demands of mixed terrain riding. TECH SPECS Color Black Rings 40 Number of Chainrings Single Crank Length (mm) 170 Crank Intended Use Gravel Drivetrain Speeds 12 Weight 812 BB Included No Pedal Spindle 9 16" Spindle Interface