Inner and outer oval chainrings are optimized with smooth shifting in mind
Features smooth angled surfaces, (6) up-shifting ramps (outer ring), and (12) down-shifting points (outer ring)
Oval rings help the rider to spin smoother and more efficiently
Example: 32t is equivalent to 30t at dead spot and 34t at the power zone
Works with 2x chainring systems and does not require any modification to the front derailleur for use
Compatibility: Shimano Dura-Ace 7900,7950,7800, Ultegra 6750, Shimano 105- 5700, Tiagra 4650, FSA, 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)
Outer chainring requires long bolts. If using inner oval ring only, stock bolts will work
Inner and outer oval chainrings are optimized with smooth shifting in mind
Features smooth angled surfaces, (6) up-shifting ramps (outer ring), and (12) down-shifting points (outer ring)
Oval rings help the rider to spin smoother and more efficiently
Example: 32t is equivalent to 30t at dead spot and 34t at the power zone
Works with 2x chainring systems and does not require any modification to the front derailleur for use
Compatibility: Shimano Dura-Ace 7900,7950,7800, Ultegra 6750, Shimano 105- 5700, Tiagra 4650, FSA, 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)
Outer chainring requires long bolts. If using inner oval ring only, stock bolts will work