Lightweight and durable 1x11-speed gravel crankset with a 40-tooth chainring and reliable chain retention.

The Shimano GRX FC-RX810-1 crankset was specially developed for gravel, cyclocross, and all-road bikes. The straightforward 1x drivetrain reduces shifting effort and, in combination with a wide-range 11-speed cassette, offers versatile gearing for asphalt, gravel, and demanding climbs.

The 40-tooth chainring features Shimano's Dynamic Chain Engagement+ tooth profile. This improves chain guidance and ensures reliable chain retention even on uneven terrain.

The proven Hollowtech-II construction combines hollow-forged aluminum crank arms with an integrated 24 mm steel axle. This gives the crankset a balanced combination of low weight, high stiffness, and efficient power transfer.

With a gravel-specific chainline of 50.1 mm, the crankset provides additional clearance for wide tires and modern gravel frames.

Highlights:

• Gravel-specific 1x11-speed drivetrain: easy operation and reliable performance on changing terrain.
• Dynamic Chain Engagement+: special tooth profile for secure chain retention on bumpy routes.
• Hollowtech II: high stiffness and efficient power transfer with low weight.
• 40-tooth chainring: versatile gearing for gravel, cyclocross, and all-road riding.
• 49.7 mm chainline: additional tire and frame clearance compared with classic road bike cranks.

Technical specifications:

• Manufacturer: Shimano
• Model: GRX FC-RX810-1
• Groupset: Shimano GRX
• Application: Gravel, cyclocross, all-road
• Front chainrings: 1-speed
• Rear speeds: 11-speed
• Chainring: 40 teeth
• Crank length: 175 mm
• Crank arm material: Aluminum, anodized
• Crank axle material: Steel, coated
• Chainring material: Aluminum, anodized
• Technology: Hollowtech II
• Axle diameter: 24 mm
• Crank spider: Asymmetrical 4-arm spider
• BCD: 110 mm
• Chainline: 49.7 mm
• Q-factor: 151 mm
• Compatible chains: Shimano HG-EV 11-speed and HG-X11
• Bottom bracket shell: 68 / 70 mm
• Recommended BSA bottom bracket: Shimano SM-BBR60
• Recommended press-fit bottom bracket: Shimano SM-BB72
• Weight: Approx. 655 g
• Finish: Matte
• Color: Black

Scope of delivery:

• 1x Shimano GRX FC-RX810-1 crankset
• 1x 40-tooth chainring, installed
• 1x left crank arm
• Note: Bottom bracket and bearing cups are not included.
• Note: Workshop packaging (without outer packaging)

Manufacturer part no.: IFCRX8101DXB0 | UPC: 192790448510 | EAN: 4550170448516

The Shimano GRX FC-RX810-1 is a lightweight and durable gravel crankset for reliable 1x11-speed drivetrains on asphalt, gravel, and demanding trails.