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Code: CS-R8000
Shimano Ultegra CS-R8000 Cassette
The feature packed R8000 cassette is built on a rigid alloy sprocket carrier. This helps improve shifting performance while reducing weight. The R8000 cassette ensures accurate and quick shifts, even with the most demanding of gear changes.
  • Hyperglide EV sprockets have been designed to ensure accurate shifting and reduce wear
  • Hyperglide EV sprockets enable the cassette to be lighter
  • Wide gear range to meet the demands of all riders, from road to gravel
  • Designed for use with 11-speed HG-EV chains
  • Weight: 232g (11-25)
  • Note - 11/34 is HG800 (same quality as CS-R8000)
  • 11-25T - 11-12-13-14-15-16-17-19-21-23-25T
  • 11-28T - 11-12-13-14-15-17-19-21-23-25-28T
  • 11-30T - 11-12-13-14-15-17-19-21-24-27-30T
  • 11-32T - 11-12-13-14-16-18-20-22-25-28-32T
  • 12-25T - 12-13-14-15-16-17-18-19-21-23-25T
  • 14-28T - 14-15-16-17-18-19-20-21-23-25-28T
Great 11 speed cassette. Lighter than 105 and cheaper than Dura Ace, a very good compromise.
Repaced a Dura Ace 11-28 which lasted less than a year. This is heavier but will be more robust. I was worried that 30 teeth would be a problem but its good; close but works perfectly. On my winter bike, which has Ultegra gears, it is perfect. I think that if I wanted 32 teeth (which I dont) that would fit too. Seems significantly better value than Dura Ace.
Needed the 11-34 for the bigger/lower gear range for my off road bike plus it's on 2 spiders where the 105/SLX isn't, so less chance of chewing my hub. Fits on a 10 speed MTB hub too, no problem. Merlin's price was even cheaper than the Germans and £14.00 cheaper than the UK's major online retailer...bargain.
New CS-R8000 cassette is certainly an improvement on the old model, competitively priced. Nice and shiny too!
I upgraded from CS-5800 11-28T to this one. Little bit lighter than the earlier and climbing now not a big hurdle for me. Thanks to the 11-32T cassette.
Bullet proof and gives a silky change.
What can I say this is the go too cassette that is great for training and all around riding and gives good crisp shifting. Mine is 28-12 and only has one hole closer to the bottom which is okay cause I wanted it mainly for climbing.
The 34 and 30 tooth sprockets are handy on poorly surfaced climbs. Works with my 6800 gs series mech. Yay!
I bought the 11-34 cassette to help my aging legs on 20%+ hills. Once I worked out what the extra spacer was for all was good. Paired with 105 5800 rear derailleur without any issue.
Matched with the semi compact crankset this cassette provides ideal range of gears for the flat bunchie while giving you spinning options when the gradients starts to head upwards
Very very light. I bought 11-28 version, and can`t believe how durable but light it is.
This 8000 is even smoother running than the previous Ultegra
Light and cost efficient
Great product, great price! I climb a lot a hills here in Northern California, few years ago I went with a 11-32, the 11-34 makes the really steep hills a bit easier.
Arrived quickly well packaged and as per order. Installed on my bike and working well. Shifting gears is now a dream.
Can`t fault the Ultegra cassettes, clean shifting and excellent durability. Bought this to replace a 6800 cassette which is only just starting to show signs of wear after 5 chains and 10000km. I wouldn`t consider any other product.
Top quality cassette. The 32 being very helpful for an older cyclist with knee issues to spin up the hills
Finish appears even nicer than 6800. Shifts beautifully with my di2 setup. Recommended.
Again smooth and precise. Lighter and an improvement on 105 cassette. Recommended.
Excellent value. I run the Dura Ace 9100 cassettes and now I`ve added a few of the Ultegra R8000 cassettes to my stable. I have multiple wheelsets and run numerous cassettes. The Dura Ace cassettes are great and a fraction lighter than the Ultegra. However, for the price of the Ultegra you`re getting almost 3-1 in terms of price. In terms of function, I`d say only the most discerning of individuals could pick the difference between the DA and the Ultegra in a "blind" test. It`s not discernably louder, shifts cleanly and crisply and in my opinion cleans up easier and appears brighter than the DA when clean. I`m a few rides in and there`s no meshing issues with the older chains. The functionality is spot on, which is why I keep coming back to Shimano Ultegra. On a cost per use basis, this is as good as it gets.
First time out big improvement from the Ultegra 6700, quicker and smoother changing will definitely be putting on my other bikes also not as expensive as the Dura Ace
Did about 2500 miles on this and the Ultegra chain, rode it all through winter too. With regular cleaning and maintenance, I hadn't noticed that it had worn until the bike shop told me it needed replacing... Typical Shimano quality, smooth and silent shifting 90% of the time.
Always a great way to save a few bucks without sacrificing performance vs. Dura Ace
Ultegra R8000 presents a host of real improvements over the already excellent 6800 series groupset, performing just as well as Dura-Ace 9100 at the cost of a 260g weight penalty.
Love the 14-28 ratio for Winter, no annoying gaps in cogs
A bit expensive but seems to be quieter with smoother shifting especially under load.
Want an 11-30 cassette, but don't care for the cost of titanium and carbon? Same tooth design as Dura Ace, but all metal, and bomb proof