Shimano GRX RX820 12 Spd Crankset

Shop all Shimano   |   Shop all Road Cranksets

  • Hassle free
    365 Day Returns
  • Safe and Secure
    for peace of mind
  • Pay by Card, PayPal, Apple Pay & Google Pay

keyboard_arrow_right Description

Shimano GRX RX820 12 Spd Crankset


The Shimano GRX FC-RX820 1x 12-Speed Crankset is the powerhouse of your gravel drivetrain, whether you're building for race-ready speed or trailblazing range.

Riders who love going for personal PRs or duking it out at the sharp end of a race will appreciate the gear steps of the RX820 1x12 UNBEATABLE setup, paired with a 10-45 cassette and RD-RX822-GS medium cage rear derailleur. Just like its 11-speed predecessor, RX820 delivers smooth, reliable shifting but now features a wider gear range and extra cog, making it easier to find the optimal cadence for maintaining your position in the pack.

For all-day—or multi-day—adventures heavy on climbing, the new RX820 1x12 UNSTOPPABLE option, add SHIMANO's wide-range, 10-51T cassette along with the RD-RX822-GSG long-cage rear derailleur. This setup delivers optimal climbing gears for the steepest jeep roads or high mountain ascents.

With the introduction of Shimano GRX RX820 12-speed mechanical components, SHIMANO continues its legacy of innovation as the originator of gravel-specific components. Rooted in simplicity, reliability, and adventure, the new 12-speed GRX lineup delivers more gearing options along with unrivaled ergonomics so riders get the most out each unpaved adventure, wherever that might be. With a focus on the heart and soul of gravel cycling, Shimano mechanical GRX receives this 12-speed upgrade delivering top-tier performance without an over-the-top price. And since gravel is all about personal expression and freedom to choose how and where to ride, Shimano GRX includes three unique 12-speed mechanical drivetrain personalities to cover the full spectrum of riders and rides.


  • 1x12-speed gearing
  • Crank arm length: 170 mm, 172.5 mm, 175 mm
  • Chainring options: 40T, 42T
  • SHIMANO HOLLOWTECH II construction
  • 655 grams (172.5 with 40t chainring)


  • Intended Discipline: Gravel
  • Spindle Diameter: 24mm (Shimano)
  • Bottom Bracket Included: No
  • Pedal Spindle: 9/16"
  • Chainrings Included: Yes
  • Chainring BCD: 110mm Shimano Asymmetric
  • Chainring Mount: 4-Bolt
  • Chainline: 49.7mm
  • Drive Type: 1x
  • Speed Compatibility: 12 Speed
  • Chainring Material: Aluminum
  • Crankarm Material: Aluminum
  • Color: Black
  • Weight: 655g (172.5mm | 40T)

keyboard_arrow_right You Might Also Like

keyboard_arrow_right Ratings & Reviews