ShimanoUltegra CS-6800 11-Speed Cassette(Return to Product Page)

I've used these cassettes for decades and they have never let me down. The 11 speed cassette continues to provide reliable shifts with a wider gear range, so that I don't need as many cassettes.

Just what I neededwanted, I was unable to find the 1123 cogsetanywhere bad bar, Performance and the like, Plus it was a great deal better price than any other place also

Flawless shifting, a little more weight than Dura Ace, but otherwise, no noticeable difference.

great price and you would be foolish to pay more. sure its a few grams heavier than top of the line. if your worried about that put down the doughnut !

This is a great cassette that will stand up to abuse and keep delivering day after day. I use these cassettes on my road and cyclocross bike and they stand up to everything.

Using this on my gravel rig......didn't need Dura Ace and am running it with Sram Force 22 drivetrain...works perfectly

With short but steep hills around driftless region you need all the cogs you can get for 18 degrees. 11-32 does the job.

If you're putting on lots of miles, its hard to spend the extra on dura-ace. The performance of this cassette is on par at a fraction of the price.

upgraded my 6700 group set to 11 spd. can't go wrong with upgraded parts. I thought my bike shifted smooth, but now its a different machine.

I have been using 6800's for years, long lasting and smooth shifting

Building wheels is the best thing about bikes. Using Ultegra 32 hole hubs and slipping on an 11 speed cassette when the wheels are done is a sure sign the wheels are going to do great things.

This is a mainstay of my arsenal

Nice new easy to install

trek madone. works great.

Got the 32T and it's a great for hill climbing on road bike...

Excellent priced product!

great smooth shifting...I have always had the 11-28 the last year I have been using 11-32 and will never go back...I don't use the 32 that much but after a long ride and the last hill home it's great to know you have that extra gear if you are outta gas!

I have been using Shimano Ultegra for 15 years and have complete confidence in the quality. A good value as well.

I use this on this on my bike

I mean what can anyone say about a Shimano Ultegra 6800 cassette. They work pretty great.

I already owned an 11-32 and 11-28. I wasn't too thrilled with them for some of my super flat crits around Chicago.

So I picked up the 11-25 and couldn't be happier. With these three cassettes I feel like I have the right tools to get the job done.

11-25 is going to be great if you want to race without to much elevation change. With the tighter spacing you can shift and find your sweet spot when you are trying to hang in the peloton and waste the minimum energy.

11-28 is going to be a great all around cassette. If you aren't going to be tackling steep grades. But won't be racing either. I don't think you could go wrong with an 11-28.

11-32 is great when you get those steep grades. Couple the 11-32 with a compact crank, you will be get getting up that hill!

Other than performance the Ultegra set is a great value for the performance it delivers. If your bike is properly tuned you can expect the components to last while delivering smooth consistent performance.