Shimano 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.

• Riders can choose closer gear steps or ultimate range depending on personal need by pairing a 10-45t or 10-51t cassette with 38t or 40t chainring (cassettes and 38t chainring sold separately)
• Optimal gearing for mixed-terrain riding
• Compatible with HG 12-speed chains
• 49.7mm chainline
• 151mm Q-factor