Reviews over the

Shimano Ultegra R8000

Am my Haustrecke always with 25 and 28 transmission unzerwegs Now with 32 er the pure pleasure on the mountain

An excellent cassette to consider if one is running an Ultegra groupset with fast delivery from Mantel at an excellent price

Pros & Cons

Quality product at a good price.

Replaces a much cheaper Dure Ace cassette, works perfectly even with Sram Etap. I wouldn't change for a Dure Ace or a SRam three times more expensive. I'd rather have three Ultegras for 6 years than a Dure Ace for two years on average.

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Fast delivery and ok

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This 14 -28 ratio I am very occasional under geared but it is the most useful ratio with no unused or rarely used sprockets.

Product great as you would expect. Speedy delivery.

Fast delivery, excellent service. I made a mistake with one of the products I ordered. Quick return and refund and at the same time the right product was sent back. Within a few days everything was in order and I'm very satisfied! I recommend +++++

As pictured,original spare part and arrived very fast

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The right compromise to have a reliable and versatile product at a competitive price.Excellent ratio scale ,you will definitely find the most suitable one for each competition.

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Good choice for my winter bike . Quality Shimano product. Kept well informed throughout the order/dispatch/delivery process.

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Good product, always reliable

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Little to say it is easily assembled and no adjustment is needed

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I purchased a Shimano Ultegra r8000 11-32 cassette. When looking for this item Mantel came up with the best price but I found their website to be great and once purchased the item arrived in an amazing package. I'll be using Mantel again soon and have told all my cyclist friends about them.

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Brilliant value, superb delivery. What more can I say

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Everything i wanted when ordering parts. Easy online service, great price (which is, lets face it with the current plethora of choice we have for retailers important). Economical packaging and fast.

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Lovely quality cassette, very little difference to my last Dura ace unit, just slightly heavier and not quite as bling, the change from 11-28 to 11-30 has been great as the 11-21 block remains identical (11,12,13,14,15,17,19,21) and only the lower 3 gears being 1 or 2t different, great service and price from Mantel. Took about 3 days from ordering to been delivered by UPS (I'm UK based). Thanks

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Fast delivery and clear information on the website

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Good cassette that shifts quite quickly! 500 miles and no wear yet!

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extremely accurate in shipping and packaging

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Fast and cheap

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Is a good cassette you can buy in different sizes

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Genuine Shimano part as described and at a very competitive price.

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Prompt delivery time, product as per description and low price

I do not understand why they sell so many bikes with the silly 11-30 cassettes - it just means that 11-12-13 sprockets are a waste of money since hardly anyone is strong enough to use them. 14-28 gives you far better range of gears and the one step change for most of the cogs works far better so you get exacty the right gear for the way your legs are feeling.

Pros & Cons

price quality is okay

Installed a 12/25 cassette (for in NL), so the transitions for cadence are less. Likes it fine, easy to install and ride.

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The site is very user-friendly, the order is correct, the products are of high quality and the prices are reasonable.

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Quality product, delivery time and delivery.

Easy to install and works a charm

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Also very suitable as replacement of 6800 cassette

Perfect for my needs!!!

Good quality shifting performance improves slightly over 105 cassette

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light, hard-wearing, good quality

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good weight savings over the 34 version and still good cassette for doing long climbs

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Shimano quality. Great service from Mantel.

Bought this cassette along with a KMC chain as part of a deal. It’s a great idea as I usually change the chain and cassette at the same time. Well packaged , super speedy delivery and great communication as to the progress of my order. Many thanks

Pros & Cons

The Shimano cassettes shift smoothly and have acceptable longevity, otherwise they are not too heavy.

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I’ve got 3 sets of ratios and they are all fantastically made & work very well on both mechanical Di2 bikes, if there’s was any fault is not being able to get quite the spread of gears I want as a close ratio set

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Mantal wont be bettered any where on the net for availableity of products and price

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Well, it does exactly what’s it needs to do, typical Shimano quality

It's a quality product from Shimano, nothing to say, well packaged and very easy to assemble.

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Excellent kit from Shimano, excellent prompt service from Mantel.

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excellent like all shimano products

Just right

Good quality product

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Quick delivery good price great communication would buy again Thank You.

Whilst it is undoubtedly good quality, it is still too expensive in my opinion. Mantel with the best price around though.

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This cassette has highest cost performance value, recommended.

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The ultegra 11-32 cassette is fantastic quality, fairly light weight with crisp smooth shifting. Excellent. Mantel was the best price I could find online too and delivered quickly.

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Good quality component and good delivery from Mantel, receiving it promptly and offering the best price around

Great cassette, good price.

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Arrived quickly and well packed. Also cheapest on the web

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Bought these because the first 9 cranks only skip one tooth and that is smoother riding.

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Good quality cassette to match that of my bikes. Purchased for use on turbo but decided to put it on my bike & use old cassette on the turbo. Best price, good service & speedy delivery from Mantel

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This ultegra product is reliable and solid, and has proven its worth. It weighs a little more than a dura ace, but the latter's faulty riveting and price don't make you regret the ultegra.

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Good price, quick delivery, perfect item

Ultegra cassette with standard spread. No nasty surprises. Very good product.

Good prices, fast delivery, great service from Mantel. Highly recommended online retailer

Product excellent, service outstanding, staff amazing, delivery fast, pricing very good and have you watched the 'thank you' video ? Brilliant...

Pros & Cons

Top as usual with the ultegra range

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As usual smooth shipping/receipt

Even though my bike has an Ultegra groupset, I normally use 105 cassettes as they are cheaper and only a few grams heavier, but with Mantel's competitive pricing I can get this for the same price as a 105 cassette from other suppliers.

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Top quality product....and a great price compared to other companies

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Needed a larger spread of gears with a 32 for an Everesting. This Ultegra cassette met my requirements perfectly: lightweight and smooth shifting. Good price and delivery too. Would recommend.

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Noticeably better gear shifting

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