SHIMANO REAR DERAILLEUR GRX RDRX812 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.

• Silent and uninterrupted rear shifting on rough terrain

• Adjustable chain stabilizer prevents chain slapping and drops

• SHIMANO SHADOW RD+

• Smooth and reliable mixed surface shifting

• Switch stabilizer ON/OFF to match the terrain

• Gravel-tuned clutch tension

• Compatible with current road DUAL CONTROL LEVER

• Top sprocket: Max. 11T/Min. 11T

• Low sprocket: Max. 42T/Min. 40T

• Total capacity: 31T