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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.
BENEFIT
Silent and uninterrupted rear shifting on rough terrain
FEATURE
Adjustable chain stabilizer prevents chain slapping and drops
TECHNOLOGY
SHIMANO SHADOW RD+
BENEFIT
Smooth and reliable mixed surface shifting
FEATURE
Switch stabilizer ON/OFF to match the terrain
FEATURE
Gravel-tuned clutch tension
BENEFIT
Compatible with current road DUAL CONTROL LEVER
BENEFIT
Top sprocket: Max. 11T/Min. 11T
BENEFIT
Low sprocket: Max. 42T/Min. 40T
BENEFIT
Total capacity: 31T