M-series rear derailleurs are designed to work with 7, 8 ,9-speed Shimano-compatible mountain and road shifters. These Mezzo rear derailleurs are light, robust, and reliable. You can count on them to get any bike on the road.
- Compatible with Shimano 7, 8, 9-speed mountain and road systems
- Steel pulley cage for extra chain-rub durability
- Weight saving aluminum bracket body and outer link