Compatibility

Shimano Dura-Ace 7950, Ultegra 6750, Shimano 105- 5750, Tiagra 4650, FSA, Praxis, Rotor 3D & 3D+, S-works and many more 5 bolt cranks. Also fits Sram Force and Red but NOT compatible with Sram cranks that have 1 hidden chainring bolt (Force22, Red22). Compatible with Di2.

Bolts

• For Outer chainring please order Long bolts
• Changing Inner chainring only? Use original bolts

What size should I choose?

• Ramps on big rings are specially configured for combinations: 50/34, 52/36, 52/38
• If you wish to use another configuration it will also work, but shifting will be slower and may require more adjustments of the front derailleur to be acceptable. Also, remember that the front derailleur can only accept a max 16T difference between two chainrings - this is how Shimano and Sram designed them.
• Absolute Black always recommends using a new chain when fitting new chainrings.