The Shimano FC-M391 Acera 9-Speed triple inner chainring is the perfect replacement for worn or damaged chainrings.
Features
- Shimano's Acera class leading chainrings offer the optimum balance of light weight and rigidity for precise shifts even under high loads
- Designed to work with Shimano's 9-Speed HG chain providing more efficiency and improved power transfer
- Genuine Shimano replacement chainring for the FC-M391 triple 9-Speed chainset; available 22T inner









