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Shimano Ultegra FC-R8100 12-Speed Chainrings

Josh Matthew August 21, 2025
5.00 out of 5 based on 1 customer rating
(1 customer review)

Price range: $15.00 through $254.00

New chainrings for your Shimano R8100 or other 110 BCD 4-bolt crankset

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Shimano Ultegra FC-R8100 12-Speed Chainrings

The Shimano Ultegra FC-R8100 12-Speed Chainrings are compatible with Shimano R8100 cranksets and other, 110 BCD 4-bolt cranksets. The aluminum construction uses Hollowglide technology to maximize stiffness while maintaining a low weight. They are available in 46/36, 50/34 and 52/36 sizes and are intended for use with Shimano 12-speed groupsets.

Please note the 46T chainring uses a flat profile and therefore requires specific bolts that match the profile of the crank arm.

Compatibility

  • Crankset: Compatible with Shimano R8100 cranksets and other, 110 BCD 4-bolt asymmetric cranksets
  • Chain: Compatible with Shimano 12-speed groupsets

Specs

  • Color: Black
  • BCD: 110x4
  • Speeds: 12-speed
  • Material: Aluminum
  • Weight: 128 grams (52/36)

Chainring Bolts

1 review for Shimano Ultegra FC-R8100 12-Speed Chainrings
  1. eric (verified owner)

    The Shimano chainring I bought worked out really good. Excellent customer service too.

    • Power Meter City

      Glad to hear the Shimano chainring worked well for you! Thanks for the kind words about our customer service — we’re here anytime you need us!

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