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Shimano DURA-ACE CS-R9100 11-Speed Cassette
January 15, 2026Price range: $268.00 through $288.00
Lightweight, top-tier 11-speed road cassette
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Shimano DURA-ACE CS-R9100 11-Speed Cassette
The Shimano DURA-ACE CS-R9100 11-Speed Cassette provides a wide range of gears for Shimano 11-speed groupsets. This DURA-ACE cassette is a top-tier Shimano cassette made with premium materials. The largest five cogs are machined from titanium and the remaining six cogs from steel. This helps keep weight to a minimum. Carbon spiders are also used to help reinforce the cassette for additional stiffness. Additionally, this Shimano DURA-ACE 9100 cassette is made to minimize friction in your drivetrain and provide smooth and crisp shifting.
Features
- New gear ranges made for flat roads, fast racing, steep climbs and anything in between.
- Fits HG freehub bodies
- Premium materials like titanium used to maintain low weight
- Refined tooth designed for smooth shifting throughout the entire cassette
- Carbon spiders for additional support while keeping a low weight
Shimano MTB Cassette Comparison (Sorted by Speeds)
| Model | Price | Bike | Speeds | Gearing | Weight |
| Shimano 105 R7101 12-Speed Cassette | $65.99 | Road | 12-Speed | 11-34T | 361 grams |
| Shimano CS-HG710 12-Speed Cassette | $87.99 | Road/Gravel | 12-Speed | 11-36T | 391 grams |
| Shimano Ultegra R8101 12-Speed Cassette | $117.99 | Road | 12-Speed | 11-30T | 11-34T | 291 grams |
| Shimano DURA-ACE R9200 12-Speed Cassette | $359.99 | Road | 12-Speed | 11-30T | 11-34T | 223 grams |
| Shimano DURA-ACE CS-R9100 11-Speed Cassette | $269.99 - $292.99 | Road | 11-Speed | 11-25T | 11-28T | 11-30T | 12-25T | 12-28T | 211 grams |
Compatibility
This cassette is compatible with Shimano 11-speed road drivetrains and fits HG freehub bodies.
Specs
- Color: Silver
- Speeds: 11-speed
- Gearing: 11-25T | 11-28T | 11-30T | 12-25T | 12-28T
- Weight: 11-25T - 175 grams | 11-28T - 193 grams | 11-30T - 211 grams | 12-25T - 189 grams | 12-28T - 205 grams
- Cogs: 11-25T: 11, 12, 13, 14, 15, 16, 17, 19, 21, 23, 25 | 11-28T: 11, 12, 13, 14, 15, 17, 19, 21, 23, 25, 28 | 11-30T: 11, 12, 13, 14, 15, 17, 19, 21, 24, 27, 30 | 12-25T: 12, 13, 14, 15, 16, 17, 18, 19, 21, 23, 25 | 12-28T: 12, 13, 14, 15, 16, 17, 19, 21, 23, 25, 28
Tools Needed for Installation
You will need the following tools for installation of this product. You can shop for the required tools on our Tools Page.
- Cassette lockring tool like the PRO Team Lockring Tool or Unior SRAM/Shimano Cassette Lockring Tool
- Chain whip like the Wolf Tooth Chain Whip
Q&A
Have a question about this? Ask the staff.
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THIS PRODUCT IS FREQUENTLY BOUGHT WITH
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DURA-ACE/XTR-level chain. Compatible with road and MTB 11-speed drivetrains and e-Bikes -
CeramicSpeed UFO DripPrice range: $20.00 through $37.80The best drip chain lube we've ever used - PMC staff favorite
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Ultegra/XT-level chain. Compatible with road and MTB 11-speed drivetrains and e-Bikes -
Shimano DURA-ACE FC-9100 11-Speed ChainringsPrice range: $42.00 through $478.00New chainrings for your Shimano DA 9100 or other 110 BCD 4-bolt crankset
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