Shimano Dura-Ace 7900 B-Type Chainring

Shimano chainrings offer durability and confidence-inspiring performance, and go a long way towards getting a drivetrain back to optimum working condition.

- B-Type inner and outer chainrings should be used together for optimal shifting
- Hollowglide hollow chainring construction for rigidity and light weight
- Designed for use with 10-Speed asymmetrical Shimano road chains: CN-7901, CN-6711 and CN-5701