Shimano GRX Crankset FC-RX810 2x11 Speed-48/31T (172.5mm)

Shimano GRX FC-RX810-2 2x11-speed Crank 48/31
The new GRX GRX FC-RX810-2 Hollowtech II crank from Shimano was developed for 2 x 11-speed to handle a wide variety of terrain and driving styles.

For gravel, road and cyclocross use: Shimano GRX 2x11-speed FC-RX810 Crank 48/31T

All versions feature a 2.5mm wider chain line that gives more space in the frame design and wider tyres. GRX 1-speed cranks minimize the complexity of shifting only at the rear of the cassette (optional RX800/600 40T cassettes or RX800 42T cassettes), and are equipped with chainrings with SHIMANO's DYNAMIC CHAIN ENGAGEMENT+ toothed treads that provide optimal chain retention especially on bumpy surfaces. The GRX RX810 2-speed crank, on the other hand, is characterised by the specific 17-tooth difference between the large 48T and small 31T chainrings, the widest gradation of all SHIMANO components to date. Together with the 46-30T cranks of the RX600 series (10-speed and 11-speed), the 2-speed cranks of the GRX family thus offer more than enough bandwidth for super steep climbs and high speeds in the flat or on descents.

SHIMANO's GRX, the first Gravel-specific component family designed for both fast progress and safe bike handling on loose surfaces, is the result of an intensive and extensive research, testing and development process that incorporates information and feedback from countless riders on trails, forest tracks, gravel tracks and asphalt all over the world.

Key Features

• Model: Shimano GRX FC-RX810-2

• Speed Compatibility: 2x11 Speed drivetrain

• Chainring Combination: 48/31T optimized for mixed terrain riding

• Crank Length: 172.5mm for efficient pedaling leverage

• Construction: Hollowtech II for lightweight strength and stiffness

• Chain Line: 47mm for improved frame clearance and wider tires

• Gear Range: Wide front gearing for climbs, flats, and descents

• Compatibility: Works with HG-EV 11-speed and HG-X11 chains

• Usage: Designed for gravel, road, and cyclocross bikes

Product Specifications

• Product Type: Bicycle Crankset

• Series: GRX

• Model Number: FC-RX810-2

• Front Gears: 2-speed:

• Rear Compatibility: 11-speed:

• Chainring Gradation: 48/31T:

• Crank Arm Length: 172.5mm:

• Q-Factor: 151mm:

• Chain Line: 47mm:

• Bolt Circle Diameter (BCD): 110/80mm:

• Bottom Bracket Shell Width: 68 / 70mm:

• Construction Type: Hollowtech II:

• Compatible Chains: HG-EV 11-speed, HG-X11:

• Recommended Use: Gravel, Road, Cyclocross:

Performance & Drivetrain Efficiency

The Shimano GRX FC-RX810-2 crankset is designed to deliver exceptional drivetrain efficiency across diverse riding environments. Its unique 17-tooth difference between the chainrings allows riders to smoothly transition between gears without losing pedaling rhythm. This wider gear range is especially beneficial for gravel riders who frequently move between steep climbs, rough terrain, and fast open roads. The Hollowtech II crank arms increase stiffness while reducing weight, ensuring maximum power transfer from rider to drivetrain. Additionally, the optimized chain line improves chain stability and clearance for modern gravel bike setups with wider tires.

Why Choose This Product

• Wide gear range suitable for gravel, road, and cyclocross riding

• Reliable Shimano GRX performance designed specifically for gravel bikes

• Lightweight yet stiff Hollowtech II construction

• Optimized chainring setup for efficient climbing and fast cruising

• Improved tire clearance for modern gravel bike frames

• Durable and precise drivetrain performance in mixed terrain conditions

In the Box

• Shimano GRX FC-RX810-2 Crankset 48/31T (172.5mm)