Shimano Alivio RD-M3100 9 Speed Shadow Design Rear Derailleur, SGS Long Cage

- Great value Alivio M3100 rear derailleur offering crisp performance on- and off-road for 9-speed drive trains
- Shadow design with smooth skid plate surface features a super low profile design that reduces the risk of damage from trail side hazards
- Wide link design increases rigidity and service life
- Alloy body and outer link leads to lower weight without compromising strength and durability
- 11-tooth pulleys for reduced pulley wear and chain noise
- Advanced light action design with low friction fluorine coated link pivot bushings
- For use with 32 to 36 tooth low rear sprockets, total capacity 45 teeth
- Top-normal swing design
- Compatible with 9-speed Hyperglide sprockets