Shimano FC-6703 Ultegra Triple Chainrings 10spd

Outer chainring is specific to 6700-series Ultegra through a (blind) backside bolt interface with integrated threads in chainring
- Outer, HollowGlide chainring also utilizes a hollow, bonded-composite shift plate for improved shifting performance
- 6703, triple version uses a proprietary middle chainring that doubles as interface for small/inner chainring mounting
- SIS compatible duraluminum construction

Original Shimano parts guarantee that all components work perfectly for optimum performance and maximum safety and longevity.