Shimano GRX RD-RX820 Rear Derailleur - 12-Speed Direct Mount One Spec Shadow Plus Design 36t Max Low ModelNumber=21282 0mm 294mm J-bend Silver Box

0mm 294mm J-bend Silver Box of 100

}SRAM Code RSC Disc Brake and Lever - Front Hydraulic Post Mount Black A1

Brake Lever Actuation Hydraulic Rotor Included No Brake Caliper Mount Flat Mount Hydraulic Fluid Type Mineral Oil Brake Lever Use Right Pad Compound Resin Rear Der/Shifter Compatibility Shimano Road Hydraulic Hose Length 1700 Adjustable Reach Yes Adjustable Contact Point No Drivetrain Speeds 12 Front Der/Shifter Compatibility Shimano Road Shifter/Derailleur Compatibility Shimano

Not compatible with Shimano 10-Speed Dyna-sys mountain bike drivetrains

Internal hook and loop fasteners reduce bulging

Shimano GRX RD-RX820 Rear Derailleur - 12-Speed Direct Mount One Spec Shadow Plus Design 36t Max Low ModelNumber=21282 0mm 294mm J-bend Silver BoxShimano 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