The Shimano GRX FC-RX810 features optimum gearing for mixed terrain and riding styles, and is designed for use with GRX Di2 components.

• Rings: 40
• Defined Color: Black
• Spindle Interface Type: Shimano Hollowtech II
• Chainring BCD: 110
• Color: Black
• Chainline/Hub Compatibility: 135/142 Road Disc Hubs > 415 mm Chainstay
• Drivetrain Speeds: 11
• Weight: 655
• Number of Chainrings: Single
• Crank Intended Use: Gravel
• Pedal Spindle: 9/16″
• BB Included: No
• Crank Length (mm): 172.5