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Shimano Dura Ace R9100 11 Speed Cassette

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Shimano has retained the traditional close cassette ratios from previous editions of Dura-Ace, but with the new R9100 groupset they have also introduced a wide range cassette.

Shimano has retained the traditional close cassette ratios from previous editions of Dura-Ace, but with the new R9100 groupset they have also introduced a wide range cassette.

Top Features:

  • Materials: Spider Arms: CFRP (Carbon Fibre Reinforced Polymer) & Alloy; Sprockets: Alloy & 5 Titanium sprockets for lightweight performance
  • Hyperglide EV sprockets have a computer designed tooth configuration with contoured shift gates, resulting in a crisp smooth shift even under load
  • Close ratio gearing allows a more efficient use of energy through finer cadence control
  • Largest sprockets are mounted on lightweight alloy and carbon carriers to reduce weight and increase rigidity
  • 5 largest sprockets are made from titanium to reduce weight without sacrificing strength
  • Sprockets are extensively cut away and drilled to further reduce weight without reducing rigidity
  • Nickel-plated finish offers hard wearing resistance to corrosion
  • Alloy cassette lockring
  • Weight: 175g (11-25T), 193g (11-28T), 211g (11-30T), 189g (12-25T), 205g (12-28T)

Product Data

  • Cassette Range: 11-28 Tooth
  • Speed: 11 Speed
  • Road: Yes

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Description

The cassette is manufactured from a lightweight alloy and carbon fibre spider that houses 6 alloy sprockets and 5 titanium sprockets. The largest sprockets are manufactured from titanium to keep the weight low. The sprockets are also extensively cut away and drilled to further reduce weight without reducing rigidity. The very best and quickest shifts are optimised thanks to the Hyperglide EV sprockets that have a computer designed tooth configuration with contoured shift gates. All cassettes in the range will be compatible with the one rear derailleur so you can easily swap your cassettes out based on terrain.

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Please note: Bikes and other bulky items cannot be returned using our local returns service (where applicable). Please contact us and we can arrange to collect these from you using our discounted courier rates. There is a fee for all collections, except for faulty products.

Returned goods must be unused and supplied with their original packaging, unless the goods are faulty. Wiggle will pay the return postage costs for any faulty items.
More information on Wiggle's return policy

Customer Reviews

Shimano Dura Ace R9100 11 Speed Cassette is rated 4.2 out of 5 by 9.
Rated 5 out of 5 by Cruncher19 from Durable Ace cassette R90100 Worth the money,,certainly light, made all the difference on those hard climbs or when your knackered on that last climb & wish you fitted a bigger gear ratio..yes I did, thank God ! Haven't done many miles on this one but fitted a durable ace cassette 10yrs ago, done several etapes & race regularly, still sweet.
Date published: 2020-07-01
Rated 5 out of 5 by Girlonabike from Another few teeth to help with the hills ! As always Shimano Dura Ace is a top notch product. This cassette just gives us another couple of teeth to help with the hills in the top of the Shimano group set range. Wears well - so long as you don't abuse it !!! Excellent product.
Date published: 2019-09-30
Rated 4 out of 5 by WaveD from It makes the wheel go round It goes on the back wheel and makes the wheel go round.
Date published: 2019-04-08
Rated 5 out of 5 by Scotty01 from Great This cassette is amazing quality being dura ace great for hill climbing
Date published: 2018-10-01
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Q & A

is this compatible with a short cage derailleur

Asked by: kierd
Normally a short cage will only accept up to a 28T cassette so this would not be suitable.
Answered by: WiggleChris
Date published: 2018-06-17

I have the new compact DA 9150 Di2 with 52-36 front rings & 11-28z cassette. Can I swap out the cassette for DA R9100 11-30 version?

the existing rear derailleur is model SH-RD 9150 & the existing cassette is SH CS 9100. Would any further modification be needed eg different cage length? Also -any changes needed to the di2?
Asked by: mikek59
Your existing derailleur will be suitable.
Answered by: WiggleKris
Date published: 2017-11-08

is this cassette compatible with a Dura Ace 9100 short cage derailleur cage with no modifications?

Asked by: AustinM
This will be suitable.
Answered by: WiggleKris
Date published: 2018-02-19

Can this be used with a short cage derailleur? The previous answer is quite vague...

I
Asked by: Walshaay
I've used 30T (by Interloc not Shimano) with Ultegra short cage no worries. The only factor could be your frame rear dropout.
Answered by: Chooseanickname
Date published: 2017-08-20

Is this compatible with the Ultegra 6800 rear mech?

This is a question about the 11-30 block against the Ultegra 6800 GS Mech. Also would it be recommended to replace the chain at the same time?
Asked by: Nauta
This would be suitable. We would recommend changing your chain at the same time as the cassette, as they wear at the same rate.
Answered by: WiggleKris
Date published: 2017-08-14

Is this 9100 cassette any different from the previous 9000?

Asked by: cartersr
The difference between the two is that the newer version has a slightly different tooth profile to enable the shifting to be more efficient. Other than that they are the same carbon spider and top 5 sprockets are titanium.
Answered by: WiggleRickL
Date published: 2017-05-05

Ultegra di2

Two questions Is this compatible with 11 speed ultegra di2? I find the 11-32 too wide a range and 11-28 to narrow (I'm 82kg!). Will there be an ultegra version? I.e way cheaper?! Thanks
Asked by: Longy62
You can use this cassette within an Ultegra Di2 drive train. At the moment there is not an 11 - 30 Ultegra cassette available from Shimano.
Answered by: WiggleBarney
Date published: 2017-01-26

compatible

Hi, I currently have a Shimano Ultegra R8000 11-28 11-speed Cassette with a 53/39 chainset. Can I replace my current cassette with this 11-30?
Asked by: thomasB1
The Shimano Dura Ace R9100 11 Speed 11-30 Cassette should fit and work without issues, although as you are increasing the sprocket size, you may need to look at your chain length and ensure the tension is correct.
Answered by: WiggleJoe
Date published: 2020-04-23

Comparability with 9070 Di2

There are 2 similar questions about compatibility with 9070 Di2 series, you are giving 2 different answers, can you settle this once and for all, I am currently using a 12-28 cassette, can I use this 12-30 in my current setup?. (9070 Di2).
Asked by: Richo3413
Make sure your chain,type,width & length match, you shouldn't have a problem. I assume your derrailer arm length is also compatible .
Answered by: Cruncher19
Date published: 2020-08-31

Is this cassette compatible with Dura Ace 9000 wheels?

Asked by: Walshaay
This cassette should be suitable for an Shimano 11 speed compatible freehub body.
Answered by: WiggleJoe
Date published: 2017-05-31
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VAT No: GB 884 2571 94 | Company No: 02667809

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Privacy Policy | Cookie Policy | Terms & conditions

© Wiggle Ltd. 2021.

Wiggle Ltd. 1000 Lakeside, Suite 310, Third Floor N E Wing, Portsmouth, Hampshire, PO6 3EN, United Kingdom

VAT No: GB 884 2571 94 | Company No: 02667809

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