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Cyclists who love to beat their personal bests or tackle the toughest parts of a Carrera will appreciate the gear ratios of the Shimano GRX FC-RX820-1 1 x12 crankset, featuring a 10-45 cassette paired with a 40- or 42-tooth chainring.
With the introduction of the Shimano GRX RX820 12-speed mechanical components, Shimano continues its legacy of innovation as a creator of Gravel-specific components. Built on simplicity, reliability, and experience, the new 12-speed GRX line offers more shifting options alongside unmatched ergonomics, so riders can make the most of every off-road adventure, wherever they may be.
Focused on the essence and spirit of gravel cycling, the mechanical Shimano GRX receives this 12-speed update, delivering top-tier performance at an affordable price. We understand that Gravel riding is synonymous with freedom and personal choice—choosing how and where to ride—which is why the new Shimano GRX includes three unique 12-speed mechanical drivetrain configurations to cover the full spectrum of riders and possible routes.
Like its 11-speed predecessor, the RX820 offers smooth and reliable shifting. Plus, it now features a wider gear range and an additional sprocket, making it easier to find the optimal cadence to maintain your position in the pack.
This setup uses the RD-RX822-GS rear derailleur, designed for use with the 10-45D cassette, and includes Shimano’s integrated SHADOW RD+ chain stabilizer, which provides quieter shifting and secure chain management on rough terrain
FEATURES:
1x12-speed
Lengths: 170mm, 172.5mm, 175mm
Chainring options: 40T, 42T
Shimano HOLLOWTECH II
Weight: 655 grams (172.5 mm with 40T chainring)
