Shimano GRX RD-RX820 Rear Derailleur - 12-Speed Direct Mount One Spec Shadow Plus Design 36t Max Low Files & Reamers Equipped with hollow taper chromoly

Equipped with hollow taper chromoly steel axles for strength

6 Length 460 Max Height 352 Min Height 172 Offset (mm) 0 Travel (mm) 120 Travel (mm) 150 Weight 571

BB Included No Chainline/Hub Compatibility 141/148 Boost Hubs Chainring BCD Direct Mount Color Black Crank Intended Use Mountain Crank Length (mm) 175 Defined Color Black Drivetrain Speeds 12 Number of Chainrings No Rings Included Pedal Spindle 9/16" Spindle Interface Type Shimano Hollowtech II keyword search FC-M8100-1

The full-powered stopper now features a technology to improve your cockpit aesthetic: Stealth

Spring Weight 425 Material Steel Stroke (ins) 2

Shimano GRX RD-RX820 Rear Derailleur - 12-Speed Direct Mount One Spec Shadow Plus Design 36t Max Low Files & Reamers Equipped with hollow taper chromolyShimano GRX RD RX820 Rear Derailleur 12 Speed Direct Mount One Spec Shadow Plus Design 36t Max Low. The Shimano RD RX820 rear derailleur is compatible with 11 34t and 11 36t 12 speed cassettes providing a wide gear range so you can spin a comfortable cadence no matter the terrain type. This rear derailleur also features an integrated chain stabilizer that delivers quieter shifting and more secure chain management during rough rides. The chain