Shimano RD-M3100 Rear Derailleur Alivio Shadow 9-Speed Ski Skins Built with durable materials and

Built with durable materials and an ergonomic profile

It’s a storm day and the skiing will be good until the very end

This cassette is designed for 11-speed drivetrains and features a lightweight yet durable construction for optimal performance on the road or trail

and power transmission

and containing 10% PTFE

Shimano RD-M3100 Rear Derailleur Alivio Shadow 9-Speed Ski Skins Built with durable materials andThe Shimano Alivio M3100 rear derailleur delivers a low profile design that lets you ride aggressively with fewer interruptions thanks to Shimanos patented Shadow design. Because of its low profile and single tension construction, the derailleur does not hit the chain stay in rough riding conditions. The result is smooth and silent performance.