absoluteBLACK Premium Shimano 110/5 bcd oval chainrings are designed for pre 2014 cranks like Shimano Dura-Ace FC7950. Ultegra FC6750. Shimano 105 -5750 and many more with 5 bolt fitting. Super fast shifting and amazing smoothness of pedaling. It is the most Premium oval chainring on the market with scientifically proven performance gains.

Compatibility:
Shimano Dura-Ace 7950. Ultegra 6750. Shimano 105- 5750. Tiagra 4650. FSA. Rotor 3D & 3D . S-works and many more older cranks. Also fits Sram Force and Red but NOT compatible with Sram cranks that have 1 hidden chainring bolt (Force22. Red22). Compatible with Di2