Shimano GRX FC-RX810-1 Crankset
Product Details
The Shimano GRX FC-RX810-1 Crankset is designed specifically for gravel, adventure, and cyclocross riding, delivering the simplicity, chain retention, and efficiency of a dedicated 1x drivetrain. Optimized for Shimano's 11-speed GRX platform, it provides reliable performance across mixed terrain while eliminating the complexity of a front derailleur system.
Constructed using Shimano's Hollowtech II technology, the FC-RX810-1 features a lightweight yet durable two-piece crank design that balances stiffness, power transfer, and long-term reliability. Available with multiple chainring options to suit different riding styles and terrain, it allows riders to tailor their gearing for everything from fast gravel roads to steep backcountry climbs.
The crankset utilizes a 48.8mm chainline for improved tire and frame clearance and features a 151mm Q-factor for a stable, comfortable pedaling platform. It is compatible with Shimano Hollowtech II bottom brackets, sold separately.
Key Features
- GRX 1x Gravel-Specific Design – Optimized for gravel, adventure, and cyclocross riding with simplified drivetrain performance
- Hollowtech II Construction – Lightweight two-piece crank design delivers excellent stiffness and efficient power transfer
- 48.8mm Chainline & 151mm Q-Factor – Increased tire clearance and stable pedaling ergonomics for mixed-terrain riding
- Multiple Chainring Options – Available in various sizes to match riding style, terrain, and gearing preferences
- Hollowtech II Bottom Bracket Compatible – Designed for use with Shimano Hollowtech II bottom bracket systems
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Series: Shimano GRX
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Model: FC-RX810-1
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Crank arm length options: 165mm, 170mm, 172.5mm, 175mm
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Chainring sizes: 40T, 42T, 44T, 46T, 48T, 50T, 52T
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Bolt circle diameter: 110mm
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Bottom bracket compatibility: Shimano Hollowtech II (not included)
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Crank construction: Hollowtech II technology with 2-piece crank arm and spider arm
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Chainline: 48.8mm
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Q-factor: 151mm
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Material: Aluminum
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Weight: 621g (without bottom bracket)
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Compatible rear derailleur: Shimano GRX rear derailleur (10- or 11-speed)