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Shimano Dura-Ace RD-R9100 Rear Derailleur

SALE: $191.35ea
Out of Stock
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Backorder: This item is currently out of stock but is available to purchase today as a backorder. The expected availability date shown above is our best estimate as to when it will be shipped to you, but this date is subject to change based on our receipt of this item from its vendor. Shipping in the continental US is free for all backorder items (for international orders, our customer service team will contact you when the item is available to ship). Your credit card will not be charged until your item ships (Paypal requires payment up front, but you can cancel for full refund). Anytime prior to shipment, your backorder can be cancelled by contacting our customer service team.

Shimano's RD-R9100 Dura Ace Rear Derailleur uses a low-profile Shadow design that keeps it more closely tucked beneath the cassette for more stable shifting and reduced likelihood of being damaged in a crash. It also allows the upper pulley to maintain a consistent distance from the cogs across all gears for more precise shifting on wider-range cassettes.

Compatible with Shimano 11-speed road groups.


  • Low-Profile Shadow RD Design
  • Largest Cog Size: 30T
  • Minimum Cog Size: 11T
  • Maximum Chainring Difference: 16T
  • Total Capacity: 35T
Ordered by Most Relevant First
5 stars
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Reviewed 9/1/2018
by Rageman
Cycling Enthusiast
Value Rating
Overall Rating
Excellent derailleur, excellent service

Replaced broken derailleur, my fault. New unit is exception. Clean sharp shifts and very smooth operation in every way. Simply the best. Shimano is proud of their product and price is always on the high side. Great deal with BTD and ordering and shipping is esy and swift. Plus points adds to the value.

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