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Shimano
Dura-Ace CS-7900 10-Speed Cassette

  (8 customer reviews)
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$169.99
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MSRP $219.99
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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.

Now with plenty of gearing options, the new Dura Ace cassette is perfect for a variety of riders and applications. And, it's new alloy carrier saves weight and increases stiffness over previous models.

Works best when used with the 7900 series chain but it also compatible with older Shimano 10 speed chains. All sizes are back compatible and work with the RD-7800 or RD-7900 rear derailleur except for the 11/28 model which requires greater chainwrap capacity and the use of the RD-7900.

  • 11/21 Tooth (11, 12, 13, 14, 15, 16, 17, 18, 19, 21); 155 grams
  • 11/23 Tooth (11, 12, 13, 14, 15, 16, 17, 19, 21, 23); 161 grams
  • 11/25 Tooth (11, 12, 13, 14, 15, 17, 19, 21, 23, 25); 178 grams
  • 11/27 Tooth (11, 12, 13, 14, 15, 17, 19, 21, 24, 27); 182 grams
  • 11/28 Tooth (11, 12, 13, 14, 15, 17, 19, 21, 24, 28); 185 grams
  • 12/23 Tooth (12, 13, 14, 15, 16, 17, 18, 19, 21, 23); 178 grams
  • 12/25 Tooth (12, 13, 14, 15, 16, 17, 19, 21, 23, 25); 185 grams
  • 12/27 Tooth (12, 13, 14, 15, 16, 17, 19, 21, 24, 27); 190 grams
Shimano Dura-Ace CS-7900 10-Speed Cassette
Other styles of this product are available.
Sale Price $169.99
 

Freehub Compatibility: Shimano/SRAM 8/9/10 

 

Freehub Compatibility: Shimano 10 Speed Only 

 

Group Compatibility: Shimano 10 Speed 

 

Group Compatibility: SRAM 10 Speed 

 

Cassette Type: Shimano 10 

11/25 Tooth

Weight: 178 grams

11/28 Tooth

Weight: 185 grams

12/27 Tooth

Weight: 161 grams

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Best of Shimano
rating
by canabasa
Cycling Enthusiast
Conway, NH

Ordered this Dura-Ace CS-7900 10 Speed Cassette as a replacement to my worn cassette of the same type. People who use the Dura-Ace group know that it is important to replace their cassette after a feel years of heavy riding. It is good to be able to source WesternBikeWorks for this part and at a very good price.

Reviewed 5/29/2018
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No brainer
rating
by Anonymous

You can't beat the quality of Dura-ace. A 11-28 is a cheaper alternative to compact cranks for 55 yr old knees. Shifts just fine

Reviewed 6/23/2017
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Great product
rating
by Rich R
Cycling Enthusiast
San Antonio, TX
0 of 3 customers found this review helpful.

Glad I purchased. No regrets.

Reviewed 6/11/2014
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Best quality at the very best price
rating
by jasyves
Cycling Enthusiast
Montral, QC
2 of 3 customers found this review helpful.

I use this cassette on my Cervlo R3 and it it procures very precise and smooth shifting. And the price is far more better than in a bike shop here in Qubec.

Reviewed 11/29/2012
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Worth it
rating
by Poormana
Portland
1 of 1 customers found this review helpful.

Smoother and sure-er shifting than James Bond working a stick in an Astin Martin. Plus it's light, and has the ultra sexy titanium gears.

Reviewed 1/21/2015
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Fantastic upgrade, or schedule maintenance must
rating
by Anonymous
Cycling Enthusiast
delaware
0 of 2 customers found this review helpful.

Nothing not to love. Simply the best, lives up to it's reputation.

Reviewed 1/24/2013
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Great Price!
rating
by GMat
Cycling Enthusiast
Columbus, OH
2 of 4 customers found this review helpful.

Nothing shifts as good as the Dura Ace cassette. I installed this on my good wheelset and anxiously await Spring for me to get the good bike back out. Till then it's my clunker bike with the Ultegra groupo that shifts nice but definitely not as good and responsive as Dura Ace!

Reviewed 1/23/2012
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Pricey, but Excellent
rating
by Anonymous
Cycling Enthusiast
Taiwan
9 of 10 customers found this review helpful.

I use this with a 7900 chain with Ultegra 6703 on the front. I think this works better than Shimano's recommended 6600 chain with the 6703 up front and ultegra cassette in the rear. I love the 11-28 option, as I do a lot of steep climbing. Nothing bad to say except - wow - pretty expensive.

Reviewed 1/19/2012
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