Shimano GRX Bike 10 Speed Shadow+ Rear Derailleur ON/OFF Clutch

Brand New Shimano Gravel GRX RD-RX400 Shadow+ 10 speed bicycle rear derailleur with clutch. For use with road 10 speed shifters / brifters. 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. FEATURE • Adjustable chain stabilizer prevents chain slapping and drops • Switch stabilizer ON/OFF to match the terrain • Gravel-tuned clutch tension • Maximum front T difference: 16T BENEFIT • Silent and uninterrupted rear shifting on rough terrain • Low sprocket: Max. 36T/Min. 30T • Total capacity: 41T • Smooth and reliable mixed surface shifting • Compatible with current 10s road DUAL CONTROL LEVER • Wide range front gearing • Top sprocket: Max. 11T/Min. 1