Shimano GRX FC-RX820-1 Crankset - 160mm, 12/13-Speed, 40t, Asymmetric 110 BCD, Hollowtech II, Black

The Shimano FC-RX820 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 this crankset's 40t chainring (cassettes sold separately)
• Optimal gearing for mixed-terrain riding
• Hollowtech II crank arms provide strength and stiffness with the benefit of weight savings
• Compatible with HG 12-speed chains
• 49.7mm chainline
• 151mm Q-factor

• Rings: 40
• Number of Chainrings: Chain Retaining Single
• Drivetrain Speeds: 12
• Drivetrain Speeds: 13
• Chainring BCD: 110 Shimano Asymmetric
• Chainline/Hub Compatibility: 135/142 Road Disc Hubs > 415 mm Chainstay
• Chainline/Hub Compatibility: 135/142 Road Disc Hubs < 415 mm Chainstay
• Color: Black
• Crank Length (mm): 160
• Crank Intended Use: Gravel
• Weight: 644
• BB Included: No
• Pedal Spindle: 9/16"
• Spindle Interface Type: Shimano Hollowtech II
• Defined Color: Black