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Shimano RD-RX812 GRX Rear Derailleur

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Shimano RD-RX812 GRX Rear Derailleur

SHIMANO GRX - Rear Derailleur - SHIMANO SHADOW RD+ - 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

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