Shimano GRX RD-RX812-R 11-Speed for 42T Max Shadow+ Rear Derailleur


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Designed for riding on rough roads, through gravel and mud, to be able to carry on in comfort, stress-free, to wherever you want, to allow you to achieve that unique sense of accomplishment. The first groupset designed for Gravel riding Explore beyond. Introducing SHIMANO GRX

SHIMANO GRX - Rear Derailleur - 42T max low sprocket - 11-speed
With an integrated chain stabilizer mechanism, the SHIMANO GRX derailleur provides a quieter experience and shifting security and precision on mixed terrain. For rides on smooth surfaces, the derailleur features and ON/OFF switch for the chain tensioner. The RD-RX812 rear derailleur is compatible with MTB cassettes with a 42T low sprocket max.
. Adjustable chain stabilizer prevents chain slapping and drops . Switch stabilizer ON/OFF to match the terrain . Gravel-tuned clutch tension . Silent and uninterrupted rear shifting on rough terrain . Smooth and reliable mixed surface shifting . Compatible with current road DUAL CONTROL LEVER . Top sprocket: Max. 11T/Min. 11T . Low sprocket: Max. 42T/Min. 40T . Total capacity: 31T