KEEP UP WHEN THE ROAD GETS ROUGH For riders seeking the best of both worlds, the new Shimano GRX FC-RX820-2 12-Speed Crankset anchors the GRX 2x12 RX820 UNDROPPABLE drivetrain, utilizing a gravel-optimized 48/31 front chainrings that, when paired with an 11-34T or 11-36T cassette, deliver an ultra-wide gear range for spinning a comfortable cadence when cruising the flats, smashing endless dirt road rollers, or tackling a massive backcountry climb.
THE NEXT GENERATION OF GRAVEL 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.
Crank arm length: 170 mm, 172.5 mm, 175 mm
Chainring combination: 48-31T
SHIMANO HOLLOWTECH II construction
721 grams (172.5 with 48/31t chainrings
Intended Discipline: Gravel
Spindle Diameter: 24mm (Shimano)
Bottom Bracket Included: No
Pedal Spindle: 9/16"
Chainrings Included: Yes
Chainring BCD: 96mm Shimano Asymmetric
Chainring Mount: 4-Bolt
Drive Type: 2x
Speed Compatibility: 12 Speed
Chainring Material: Aluminum
Crankarm Material: Aluminum
Weight: 721g (172.5mm) (48/31T)
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