With an integrated chain stabilizer mechanism, the Shimano GRX RD-RX812 11-Speed Rear Derailleur provides a quieter experience and shifting security and precision on mixed terrain. For rides on smooth surfaces, the derailleur features an ON/OFF switch for the chain tensioner. The RD-RX812 rear derailleur is compatible with MTB cassettes with up to a 42T low sprocket max.
B-Stock - This product has one or more B-Stock units available. These units can be purchased at a discount (see option select). B-Stock units were returned from other customers and may have missing or damaged packaging materials. These units are otherwise as new. The full manufacturer warranty applies. Click Here for more information.
Actuation: Mechanical | |
Discipline: Gravel | |
Speed: 11 | |
Mfg PartNum: KRDRX812 | |
Model: GRX | |
