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Shimano Ultegra FC-R8100 12-Speed Chainrings Outer

Shimano Ultegra FC-R8100 12-Speed Chainrings Inner

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Shimano Ultegra FC-R8100 12-Speed Chainrings

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Mfg PartNum:

(2 customer reviews)

$12.00-$110.00

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Description

Specs

Reviews (2)

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.

Specifications


Mount Type: Shimano 4-Bolt

Speed: 12

Type: 2x

Use: Road
34t - Inner	Mfg PartNum: Y0NG34000
	Tooth Count: 34t
36t - Inner	Mfg PartNum: Y0NG36000
	Tooth Count: 36t
50t - Outer	Mfg PartNum: Y0NG98010
	Tooth Count: 50t
52t - Outer	Mfg PartNum: Y0NG98020
	Tooth Count: 52t

Reviews

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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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