AbsoluteBLACK Premium Road Shimano 110/5BCD oval chainrings are designed for pre 2014 cranks like Shimano Dura-Ace 7900,7950,7800, Ultegra 6750, 6700, Shimano 105- 5700, 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 . These are finest shift-able oval chainrings on the market. Important: If you currently use 53/39T chainrings you have 130BCD cranks (not 110BCD). In this case please look at AbsoluteBLACK's 130BCD chainrings as you will not be able to use anything smaller than 53/39T. Specification Size (Weight +/-1g): 34T...
Best Price: £40.95 from Merlin Cycles