Experience crisp performance on and off-road with the Shimano Alivio M3100 rear derailleur, designed for 9-speed drivetrains. Its Shadow design features a super low profile and smooth skid plate surface to minimize the risk of trail-side damage. The wide link design enhances rigidity and extends service life, while the alloy body and outer link ensure durability without adding unnecessary weight. Enjoy reduced pulley wear and chain noise thanks to the 11-tooth pulleys and a low-friction fluorine-coated link pivot for smooth action. This derailleur is optimized for 32 to 36 tooth low rear sprockets with a total capacity of 45 teeth, featuring a top-normal swing design and compatibility with 9-speed Hyperglide sprockets. **Key Features:** * Wide link design for increased rigidity and service life * Alloy body and outer link for durability and reduced weight * 11-tooth pulleys for less wear and noise * Advanced light action with fluorine-coated bushings * Suitable for 32-36T low rear sprockets, 45T total capacity * Top-normal swing design * Compatible with 9-speed Hyperglide sprockets **Product Summary:** Shimano Alivio M3100 rear derailleur, 9-speed, black, for cycling, with Shadow design, wide link, alloy construction, 11-tooth pulleys, compatible with Hyperglide sprockets.