2x11 Gravel Crankset

GRX FC-RX810-2

This FC-RX810-2 gravel crankset was designed with a balance between weight and efficiency in mind. It is about 50g heavier than the closest FC-R8000 crankset option, but it should also be able to handle the rougher gravel riding better - it is a bit more sturdy. It is available with 170mm 172.5mm and 175mm crank arm lengths and comes with 48-31T chainrings.

This gravel crankset's chain line is 47 mm - that's 2.5 mm more than a conventional road crankset and allows for better tyre clearance. The chainring P.C.D. is 110/80 and the Q-factor is 151mm.

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Specifications

Model code: FC-RX810-2
Series: GRX RX815
Weight: 710g
Chain line: 47mm

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FC-RX810-1

1x11 Gravel Crankset

FD-RX815

Front Derailleur

RD-RX815

Rear Derailleur (2x)

RD-RX817

Rear Derailleur (1x)

ST-RX815

Hydraulic Disc Brake Dual Control Lever

BT-DN110

Internal Battery

EW-SD50

Electric Wire / E-Tube cable

EW-RS910

Frame/Handlebar Junction

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June 2, 2025Installation Guide

Installing a new chain - length and direction

Sizing and installing a new chain for your Di2 bike isn't hard, you just need to follow the right steps. This page quickly shows the chain sizing methods and explains chain directionality.

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