SHIMANO GRX, with its gravel specific ergonomics, optimized gearing options, rugged reliability, and quiet and stable drivetrain, sets itself apart from the rest of the component world. It isn’t a reworked set of road components. It represents a ground up look at how cyclists want to explore their world. SHIMANO GRX helps you eliminate excuses, instead urging you to try that rough sidetrack or ride that little bit longer. It offers you the option to Explore Beyond.

Features:

• Gravel gear ratios preserve riding rhythm over rough surfaces with wider tires
• 17T front range
• Optimum gearing for mixed terrains and riding styles
• Wider range front system
• Gear combination: 48-31T

Specifications:

• Model Number: FC-RX810-2
• Series: SHIMANO GRX DI2
• HOLLOWTECH II Technology
• Chain line (mm): 46.9
• Chain ring combination: 48-31T
• Compatible BB type: Outboard
• Compatible chain: HG-EV 11-speed, HG-X11
• Crank Arm Length: 170 mm, 172.5 mm, 175 mm
• Crank fixing bolt included
• Gear arms: 4
• HOLLOWTECH Technology:
• P.C.D. (mm): 110/80
• Rear speeds: 11
• Recommended BB Pressfit: SM-BB72
• Recommended BB Threaded (normal): SM-BBR60
• Threaded BB Shell Width: 68 mm, 70 mm
• Q-factor (mm): 151