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170mm, 2x11, 48/31t Chainrings
170mm, 1x11, 40t Chainring

Shimano GRX FC-RX810 11-Speed Crankset

Mfg PartNum:
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The Shimano GRX FC-RX810 features optimum gearing for mixed terrain and riding styles, and is designed for use with GRX components.


1x Option:

  • 1x11 drivetrain offers simplicity
  • Features tighter gear steps to maintain rhythm on familiar routes
  • Available with either 40t or 42t Chainring
  • 50.1mm chainline / 151mm Q-factor

2x Option:

  • 2x11 speed crankset features gravel-specific gear rations that preserve riding rhythm over rough surfaces with wider tires
  • Includes a 48/31t front range for wider gearing possibilities
  • 46.9mm chainline / 151mm Q-factor

170mm, 1x11, 40t Chainring

Mfg PartNum: IFCRX8101CXB0 

172.5mm, 1x11, 40t Chainring

Mfg PartNum: IFCRX8101DXB0 

175mm, 1x11, 40t Chainring

Mfg PartNum: IFCRX8101EXB0 

170mm, 1x11, 42t Chainring

Mfg PartNum: IFCRX8101CXB2 

172.5mm, 1x11, 42t Chainring

Mfg PartNum: IFCRX8101DXB2 

175mm, 1x11, 42t Chainring

Mfg PartNum: IFCRX8101EXB2 

170mm, 2x11, 48/31t Chainrings

Mfg PartNum: IFCRX8102CX81 

172.5mm, 2x11, 48/31t Chainrings

Mfg PartNum: IFCRX8102DX81 

175mm, 2x11, 48/31t Chainrings

Mfg PartNum: IFCRX8102EX81 

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All About Gear Inches   
A guide to understanding and calculating bicycle gear inches.

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