Shimano GRX FC-RX810-1 Gravel Crankset, 40T, 11-Speed, Hollowtech II

Shimano GRX FC-RX810-1 Crankset – 40T, 172.5 mm, 11-Speed

The Shimano GRX FC-RX810-1 crankset is purpose-built for gravel and mixed-surface riding. With a single 40T chainring, optimized gear range, and Hollowtech II construction, it strikes the perfect balance of strength, stiffness, and weight savings. Designed for Shimano’s 11-speed drivetrains, this crankset provides quiet, reliable performance across varied terrain, giving you the confidence to tackle everything from rough gravel to long climbs.

Why you’ll like it

• Gravel-specific design – engineered for stability and efficiency on mixed terrain.
• 40T single chainring – simplifies shifting and provides versatile gearing for gravel adventures.
• Hollowtech II technology – lightweight, stiff, and durable crank arm construction.
• 172.5 mm crank arms – ideal length for balanced performance and fit.
• 11-speed compatibility – works seamlessly with Shimano GRX and road 11-speed drivetrains.

What’s in the box

• 1 × Shimano GRX FC-RX810-1 crankset (172.5 mm arms, 40T chainring)
• Bottom bracket not included (sold separately)

Tech specs Manufacturer Shimano Series GRX Model FC-RX810-1 Manufacturer Part # KFCRX8101DXB0 Speed 11-speed Chainring 40T (single) Crank Arm Length 172.5 mm Interface Hollowtech II Bottom Bracket Not included Application Gravel / Adventure / Mixed-surface riding Fit notes

• Designed for 11-speed Shimano GRX and compatible road drivetrains.
• Bottom bracket must be purchased separately (Hollowtech II compatible).
• 40T chainring offers an optimal gear balance for gravel and adventure riding.