Reviews over the

Shimano Ultegra R8000

Delivered next day as directed. Product as described at a competitive price!

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Really happy with both the quality and price of this component. I bought the chain/cassette bundle which meNt that I was getting the most compatible components. Great delivery, 2 days to Ireland.

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Ive ridden my bike far mire tgan usual during lockdiwn, 6000km in 3 minths, so i thought i should invest ina new cassette even though the old one was only 8 months old. I added a new chain two as i replace a chain ever 2 to 3 months. Wow, whar a difference. Shifting is properly crisp and smooth.

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I use this 11-30 cassette with 52-36 at front and Di2 RD 8050 SS. I'm sure that the Gear Position Control witch prevents to shift into the 2 smallest sprockets allows calculate the chain capacity of RD like: 52-36 + 30-13 = 33 (the chain capacity of RD SS)

Excellent item

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Ultegra, the benchmark for quality, price, functionality and durability. I recommend it to all enthusiasts looking for good equipment.

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Just what I needed and expected.

As to be expected with Shimano Ultegra, good quality cassette for tjr price. Nice clean, crisp shifting.

Everything is great! And fast

everything great, everything turned up on time and works perfectly

Shimano Ultegra from Mantel at an excellent price and fast delivery

Especially in combination with a new chain, a very affordable cassette! Did 7,500km with my previous cassette (also ultegra) without replacing the chain. Will replace my chain a little earlier this time though, then the cassette should definitely last even longer!

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Everything perfect original packaging and arrived in a timely manner. Very happy with the purchase.

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My bike has Shimano 6800 group. The cassette R8000 11 speed shifts like a train.

Perfect, exactly what I expected.

Work fine

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Fast and correct delivery. 11-32 cassette from shimano in combination with a (semi-)compact is an ideal gearing for cycling in the mountains. A 32 is just right to keep pedaling smoothly at all times.

Excellent product

Fast shipping and good price of the product.

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I bought this to replace my 11-28 cassette to give me more options on some steep French roads. It's easy to fit and was packaged well and delivered quickly

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Everything was delivered as ordered, correctly.

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Bought this Ultegra cassette for the best bike. Crisp, smooth shifting, easy to keep looking good, what is not to like? Would recommend both the cassette and Mantel!

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Mantel offered the best price and a fantastic service. I would definitely recommend them.

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Quality at a reasonable price. I took the 14-28 for the mountains, coupled with the 53x39.

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Top company great delivery great price very happy with the service

Excellent quality as ever from Shimano. Super smooth shifting and light weight.

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super fast delivery at a great price and a quality product what more can i say !

Living in an area where steep hills make cycling more challenging, I wanted a cassette that was easier on the hills. This 11 speed 11-34 made a huge difference, giving me that extra gear.

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Great service quick and fantastic price

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Very helpful,didn't wait long to receive my cassette

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Super kit

Shimano as always

Cassette range options available was excellent, meaning I was able to get exactly the same range as I already had on my bike. Delivery was very quick and the price was better than other retailers

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By far the cheapest price I could find for the r8000 cassette

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Please urge to deal with such a streamlined service, kept informed every step of the way from order to shipment to expected delivery time

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Replaced my 11/28 cassette with this 11/32 and it’s given me that extra gear I needed to grab on the climbs. Great shimano quality as expected and a great service during lockdown

I have used ultegra cassettes for many years and I know for their durability many pro teams and riders use them as they are bombproof.

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It does what it says on the tin. Usual shimano quality great price and quick delivery!

Usual Shimano quality Usual cheap price and quick delivery from Mantel Happy And bike now shifts properly

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brilliant, just work seamlessly

Best price I found Good speedy delivery and well packaged

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Needed the extra range cassette for the Spanish hills I now won't be visiting. Will keep it handy and will hopefully use later this summer.

Reliable and consistent. Shiman Ultegra.

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Gives you all the range you need when the road points up. Super smooth shifts and no need to be riding around with a 28 as the largest sprocket anymore. If you have standard Ultegra r8000 rear derailleur that should be fine, just new chain only.

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Great cassette as its so close ration all the way to 21. Shame its not available in dura ace

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Happy with purchase. No problems

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Excellent quality...does what it says on the box

Great product. Need a 36 to match the sram cyclocross group-set

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This cassette works beautifully. chain not dropped once, and shithing fast.

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Nice and light.

I'm not a cadence orthodox but still find the 2-teeth grading very smooth for climbing (I did some 20%+ gradients on my semi-compact) and descents. Though I did very litte flats b/c I intend to use it solely for the mountains. Still good piece of specialist kit.

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I’m reasonably fit but don’t generate much power. Any sustained climbing over 7% burns me out leaving me wrecked on long runs. This cassette fixes that problem.

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I need it to get up the Italian Dolomites!

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That bottom gear does just the job on the 20% hills

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It's a cassette! It does exactly what it says on the tin. The range 11 to 30 is great. You might miss a ratio in the middle but it gives everything you should need at both ends of the spectrum.

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I purchased the 11-34 Ultegra R8000 cassette from Mantel to replace my current Ultegra 11-32 cassette. Good service and quick delivery. I do a fair bit of hill climbing and as I get older, I needed a little more help. I was concerned at first thinking that the gear ratios may be difficult to get use to. To be fair it is brilliant I love the ratios - the 30 tooth gear is ideal for most hills, saving the 34 tooth ratio for that really tough climb, or when I'm fading!

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