Shimano GRX FC-RX610 1x Gravel Chainset

The SHIMANO FC-RX610-1 crank balances weight savings, optimized efficiency and an array of gearing options that cater to the segmented demands of mixed-terrain riding. By pairing a 10-45T or 10-51T cassette with 38T or 40T chainring, riders can choose closer gear steps or ultimate range depending on personal need. The FC-RX610-1 comes in 165, 170, 172.5, and 175 mm crank arm lengths, providing an additional level of customization.

• Optimal gearing for mixed-terrain riding. 10-45T and 10-51T cassette options serve array of riding styles
• 2-piece design bottom bracket bearings to be spaced wider apart, enabling the use of larger bearings and an increased axle diameter
• Compatible chain: HG 12-speed
• Chain line (mm): 49.7
• P.C.D. (mm): 110
• Spider/gear arms: 4
• Crank arm length: 165mm, 170mm or 172.5mm
• Chainring combination: 40T
• Q-factor (mm): 151
• Recommended bottom bracket / Threaded: BB-RS501
• Recommended bottom bracket / Press-Fit: BB-RS500-PB
• Supplied OE
• Includes both crank arms and end cap
• Weight: 812g