Description
If You Like It Then Put A (New) Ring On It
Shimano Ultegra FC-R8100 12-Speed Chainrings are compatible with Shimano R8100 cranksets and other, 110 BCD 4-bolt asymmetric cranksets.
Choose from Inner or Outer rings for 50/34 or 52/36 combinations.
Features:
- 110 BCD
- 4-bolt asymmetric
- Inner and Outer rings sold separately
- 12-Speed
- Aluminum
B-Stock - This product has one or more B-Stock units available. These units can be purchased at a discount (see option select). B-Stock units were returned from other customers and may have missing or damaged packaging materials. These units are otherwise as new. The full manufacturer warranty applies. Click Here for more information.
Reviews
Ordered by Most Relevant First
5 stars
4 stars
3 stars
2 stars
1 stars
Inner Ring 34t
When riding the Mortirolo Mazzo this is a game changer.
Reviewed 10/2/2025
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Good for the hilly ultramarathon events!
by The Prodigal Cyclist
Wisconsin
I normally train on a semi-compact crankset, but when the races get long and hilly, spinning a compact is much more efficient and saves energy through the laul haul. These Ultegra chainrings make that possible.
Reviewed 3/28/2025
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Generally better to get a matching Chainring with the Groupset
by kris.cycles
Cycling Enthusiast
Atlanta, GA
If you are running Shimano Front mech, this is a better option than 3rd party chainrings. not the lightest but shifting performance is optimized.
Reviewed 10/7/2024
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