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A black Shimano GRX RX820 1x Crankset with chainring.

Shimano GRX RX820 1x Crankset

Niel Ubod April 12, 2024

$249.99

Shimano GRX 1x 12-speed crankset for your gravel or cyclocross bike
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Shimano GRX RX820 1x Crankset

The Shimano GRX RX820 1x Crankset is Shimano’s latest 12-speed crankset for your gravel or cyclocross bike. This 1x crankset is available with both 40T and 42T chainring options. These single chainring gearing options allow you to find the perfect gear for your riding while also removing the need for a front derailleur. Additionally, the RX820 can be combined with any of Shimano’s GRX 610-series components.

 

Key Product Details

Compatibility:

This Shimano GRX crankset is compatible with Shimano 24 mm bottom brackets and 12-speed groupsets.

Key Features:

Shimano’s latest 1x crankset, ideally suited gearing for gravel riding, can also be used with 1x or 2x GRX chainrings. See Specs tab for more details.

Advice From Our Staff:

Shimano GRX cranksets are one of the most popular options for gravel and CX riders. This new 820 series is a great crankset for riders looking for a 1x setup for their 12-speed Shimano drivetrain.

 

Options For This Crankset

  • Chainrings: 40 | 42
  • Crank arm lengths: 170 mm | 172.5 mm | 175 mm

 

Other Versions to Consider

Shimano GRX RX820 2x Crankset: If you are looking for a 2x crankset, we have the Shimano GRX RX820 2x Crankset. This version provides extra range for rolling terrain or steep climbs.

Compatibility

This crankset is compatible with Shimano 24 mm bottom brackets and 12-speed groupsets.

Specs

  • Interface: 110/80 BCD 4-Bolt
  • Crank Arm Material: Aluminum
  • Chainrings: 1x (however you can put 2x rings on it as well)
  • Speeds: 12
  • Spindle Size: 24 mm
  • Chainline: 49.7 mm
  • Q-factor: 151 mm
  • Weight: 40T - 644 grams | 42T - 656 grams

Tools Needed for Installation

You will need the following tools for installation of this product. You can purchase many of these commonly used tools in our store.

  • Shimano Crank Arm Cap Tool
  • 5 mm Allen key
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