Shimano GRX RD-RX400 Rear Derailleur 10 Speed Direct Mount Long Cage BlackThe Shimano GRX RD-RX400 Rear Derailleur has an integrated chain stabilizer mechanism to provide 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. Engineered to be silent and give you uninterrupted rear shifting on rough terrain. The adjustable chain stabilizer prevents chain slapping and drops. Compatible only with 10-speed ST-RX400, ST-4700, ST4720, ST-4725, ST-RS405 and SL-4700 shift levers. Compatible with HG-X 10-speed chain. The maximum front teeth difference is 16T. The Low sprocket can have a Maximum of 36T and a minimum of 32T. The Total capacity is 41T. Direct Mount Version.192790448893
