With an integrated chain stabilizer mechanism, the SHIMANO GRX-Limited 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-LE rear derailleur is compatible with MTB cassettes with a 42T low sprocket max.
With an integrated chain stabilizer mechanism, the SHIMANO GRX-Limited 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-LE rear derailleur is compatible with MTB cassettes with a 42T low sprocket max.
FEATURE
・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
