Reviews over the

Shimano Ultegra 6800 11 Speed

The parts I ordered were always satisfactory, in terms of quality,

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Ideal for flat country. 11-23 nice mix. Exactly what I expect from it. Unfortunately they are going out of the range in the future.

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Works perfectly

For on the flat, the 11/23 is the best cassette. Transitions are per tooth only the last 2 skips 1 tooth. Rides super and shifts very smoothly like this. Cassettes last a long time for the amount you pay for them.

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Excellent cassette, with tooth no. 18 being a big plus

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Fast delivery and clear information on website

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This cassette is ideal for NL. Why would you need bigger sprockets on 100% flat courses? I really like it, perfect cadence all the time. Only drawback is that is expensive, I wish there was a 105 version

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Love the product, quick delivery

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Fine cassette. Pity, though, that no separate sprockets can be bought. This makes it an expensive solution

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The gear ratio is perfect. The gearstick is as smooth as butter and barely audible. Really smooth.

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Excellant .

Excellant .

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Just made the change to a 11/32 ratio with this cassette which delivers the trusted quality and reliability of Ultegra 6800. The first ride on this set up delivered an improved performance in a regular tough local climb that has 20% gradient in parts. Very pleased with the results.

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great cassette

What can you say. Does exactly what you expect at a fraction of the cost of Dura Ace.

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What can you say. Does exactly what you expect at a fraction of the cost of Dura Ace.

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Excellence service

These Ultegra cassettes are the business - they work as they should, and last well as lomg as you keep them clean and the drivetrain well-lubed.

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Brilliant cassette, ideal for my new cx build

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Great purchase

Great service, dispatch etc. Top class.

Shimano quality matched by Mantel's service and excellent pricing. Many thanks.

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Great site and great prices

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I've stuck with the same cassette very smooth

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Quick delivery at a great price with a great range of top products

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I bought this cassette for my direct drive turbo muni. I have the same cassette on my summer bike and the 105 version on my winter bike. Both are super smooth to use on the road and have great ratios for climbing the hills.

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I personally think the ultegra wears better than duration ace and is certainly quieter

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Excellent product and service from Mantel

I have two bikes, one is fitted with Shimano 105 and the other is fitted with Shimano Dura Ace. I fitted this cassette to my spare wheel and can use it in both bikes. The cassette works perfectly with both systems.

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Great quality backed up by great sevice, I'll be back for another when it wears out

Shifts as smooth as the DA but is harder wearing and a fraction of the cost with only a small weight penalty.

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I really rate the Ultegra cassette for it's crisp changing and very light. More cost affective for me on my budget without too much performance difference compared with dura ace.

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The 11 speed ultegra cassette is what it is, high quality as always from Shimano. My first time shopping here but will definitely be back - great price, great service and quick delivery.

If one desires dependability with regularity, then the most obvious choice is Shimano's Ultegra 11speed components. Entirely practical without egregious cost, one would be silly to ignore the benefits of running Ultegra, in this case their most excellent 11-23. A cassette that, when paired with either a 36 oor 39 inner will get you up any hill, contrary to what "experts" may profess. The added benefit with this ratio is that from 11-19, there are no gaps, just one tooth difference. A boon when on the local chaingang

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I was looking for a new cassette for junior racing. Previously had to use miche ones (which were rubbish). Thrilled when I found a genuine ultegra one in a 14-28. Mantle are the only place I found it within the UK. Speedy delivery and great service.

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very good, exactly what I needed

Had a few of these through the years and would not look at any other manufacturer other than Shimano. Great quality product and performance for the money, not far off Shimano's top of the range Dura Ace. Trouble free shifting for the life of the product - fantastic!

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Great price for this cassette. Use this rather than dura ace which I find too expensive, a bit heavier but works just as well

Good quality, shifts well, not too expensive.

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Smooth and Reliable

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As usual Ultegra is the best value out there, well made a relatively light. Great shifting and works brilliantly

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A great cassette, light, smooth and doesnt wear too quickly. At a great price too.

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It's Ultegra, so it's great and high quality.

Great spped

Speedy service, very impressed

Great product, great service. Very competitive price.

Replacement like for like cassette, never had a problem with these.

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bought this 11-28 to replace an ageing 12-25 and it works perfectly. Especially pleases my ageing legs on the climbs :-D

I bought one of these for a new set of wheels so that I could easily swap between the two. 11-32 gives me the spinning I need on the hills.

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Certainly enough for me until I upgrade again!........

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For the price this is the best value for money cassette

Great Cassette easy to put on and easier smoother transmission change of gears up or down quieter than others,overall i highly recommend the Shimano Ultegra 6800 11 Speed Cassette

As always with shimano fabulous quality and does exactly as its supposed to do and does it very well

Ultegra cassette best value anywhere with a service 2nd to none ..

Looks good runs well and smooth changing with Di2

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Smooth shifting and lightweight.

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As ordered, well packaged and prompt service/delivery

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Light and hard wearing.

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my Shimano Ultegra 11-32 arrived very quickly, was packaged very well and was less expensive than anywhere else online. Doesn't get much better than that!

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great value for money,light hard wearing

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Quick, accurate delivery.

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To with my Wheel set from Zipp, very happy. especially for the price I paid. I can notice a big improvement in my gear shifting.

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I have moved to shimano 11 on all bikes including my TT bike. The ultegra cassettes are great - I even had one milled to fit an 'old" zip disc. I have 11-23 and 11 -25 set ups with compact on road bikes and 56-44 on my TT. Just buy them.

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Great 11 cassette, especually with Di2, excellant price and service from Mantel

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Why pay £110 or more for Dura Ace when this is not much heavier and a very good price.

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Great quality item at a good price and super fast delivery

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Switched out the stock 11-28 cassette (on Cube Agree GTC SL Carbon Compact) to this 11-32 cassette, as I'm relatively new to road biking after years of mountain biking and struggled with the reduced gear range on the climbs. The change had an immediate benefit. I read up beforehand and spotted numerous forum posts about potential issues with the derailleur compatibility with this shift to '32...but cross checked on Shimano's website and as I wasn't using the short cage derailleur (the bike has Ultegra RD-6800GS fitted) the only thing that was needed was a new chain to add length.

easy to fit , super smooth changing gears and its shiney

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Fully boxed and delivered in excellent time

Shifts well in all gears, nice finish and wears well. Would like to see a better selection of ratio's available from the manufacturer.

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Spot service quicker delivery than some in uk

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Superb delivery of this product, really good quality and I always buy Ultegra. No need to buy dura ace unless you are a pro and looking to shave a few grams off your bike. Easy to fit and off you go.

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1 speed Shimano Ultegra 6900 11-28 compact cassette is on all my bikes whilst running Dura Ace as it saves a little on the pocket and not too much difference in weight.

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Lightweight and reliable.... better than Dura-ace..... probably! Only a bit heavier and ALOT cheaper.... and will probably take longer to wear out!!

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Great strenght great value Just a perfect alleounder

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Slightly lighter than the 105 that it replaced. Nicely machined and the applicator was very useful, making the installation very simple. The 11 32 works well in my area suiting the climbs with enough on the smaller cogs to give good speed.