Special PVD Rainbow Titanium coating process makes chainrings very durable and incredibly beautiful
NOTE: Due to the nature of the PVD process, every chainring is unique and color may vary. Not a single chainring is the same which makes your new ring completely individual
Compatibility: Shimano Dura-Ace 9100, R9120, R9150 & R9170 Di2 and Ultegra 8000, R8020, R8050 & 8070 Di2, 105- R7000, R7020, R7070. They can also retrofit all 9000 and 6800 series cranks but use bolt covers for best appearance. 10 / 11 / 12sp compatible
For outer chainring please order inchlong bolts inch from us OR bolt covers. Changing inner chainring to oval only? use original bolts
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
Designed in UK, manufactured in Poland
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