- Shimano Ultegra 6700 10 Speed Cassette
zoom Shimano Ultegra 6700 10 Speed Cassette
Shimano Ultegra 6700 10 Speed Cassette
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The new Ultegra HyperGlide 10-speed cassette comes with an alloyn carrier. Special sprocket profiles for even smoother, lighter and faster shifting.
Top Features of the Shimano Ultegra 6700 10 Speed Cassette
- Available gear ranges: 11-23, 11-25, 11-28, 12-23 and 12-25T
- Hyperglide sprockets have been designed to reduce weight with improve teeth shaping providing accurate shifting and reduced wear
- Wide gear range to meet the demands of all types of rider
- Weight 208 grams (11-23 teeth)
Lightweight 10-speed cassette with rigid alloy sprocket carrier for reduced weight and better shifting performance, even under the most demanding gear changes
About Cassettes & Freewheels
Cassettes and freewheels for bikes are a cluster of sprockets in a range of sizes offering a multitude of gear ratios. The difference between the two is, a cassette slots onto the freehub, which has the ratchet built in and is then secured with a lockring, whereas a freewheel is a cluster of sprockets built around a ratchet and threads directly on to the hub. Cassettes and freewheels come in many ratios, close ratio is when the number of teeth increase in small increments of 1 or 2 at a time, whereas a wide ratio is when the teeth increase in larger increments of 3 or 4 at a time. Most systems will use a cassette hub as these allow for a wider bearing spacing and increased axle life, you can also fit a larger quantity of sprockets onto a cassette hub with 11 speed systems now becoming available. With cassettes you must use the appropriate spacing for your gear levers and rear mech, Shimano and Campagnolo are not interchangeable so you will need to match the cassette to your levers for smooth and precise shifting. Sram and Shimano chains and cassettes will work together as they use the same spacing.
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Magazine reviews for Shimano Ultegra 6700 10 Speed Cassette
Review from road.cc
Although it's great to look at new and shiny Dura Ace (and Di2) kit, it's always the announcement of the new Ultegra groupsets that generates the most excitement here at road.cc towers. Ultegra has always been the smart choice in the Shimano range: affordable enough to be a serious consideration with first dibs on all that innovation trickling down from the top.
Dura Ace 7900 was a fairly big leap in a market that mostly makes incremental changes, and Ultegra 6700 has stepped up a notch too, taking on plenty of the new technology at a price point that's much more within the reach of the keen amateur cyclist.
Ultegra now has the hollowglide chainring of Dura Ace. It also shares the internal lever cable routing, the Carbon lever blade, redesigned hood shape and repositioned pivots on lever and brake. In fact there's not much that it doesn't have, really only the no-trim shifting of the front mech. So what's the performance difference between the two groupsets?
Hand on heart I'd have to say that blindfolded I'd be very hard pressed to tell the difference between the two. There's no real performance advantage to be had by buying Dura Ace kit over the new Ultegra, not one you'll notice out on the road at least. The new Ultegra kit is excellent: shifts are crisp, braking is noticeably better, power transmission is near faultless.
In the end it all comes down to weight: Dura Ace 7900 is about 300g lighter than Ultegra 6700. If you can honestly say you'd notice half a pound more kit hanging from your frame then you need to consider the top-of-the-line groupset. For everyone else, myself very much included, the smart money's with Ultegra. Forget the RRPs for a minute: In the real world 7900 is going to cost you a grand, and 6700 can be had for less than £600. For me it's a no-brainer: if you're a Shimano fan then Ultegra 6700 is definitely the groupset that gives you the most bangs per buck. Here's how we rate the components...
There's not a great deal to say about the cassette, except that Shimano have fiddled a bit with the tooth profiles. It's not noticeably different to last year's profile though. There's a good range of cassettes on offer (11-23, 12-23, 12-25, 11-25, 11-28) and there's an alloy sprocket carrier to save weight. The bigger sprockets are drilled too, so shave a few extra grams off tot total.
Ultegra is the new amateur rider's benchmark for performance and price. Almost indistinguishable from Dura Ace in terms of performance, it only loses out on weight – but more than makes up for that in value for money.
Product Q & A
Ask your questions and share your answers.
In a word, no. I have a Dura Ace 7800 short cage rear mech and fitted an Ultegra 11-28 6700 cassette (replacing a 12-25). Although the chain shifts smoothly onto the cassette, there is the occasional shudder and click in the rear derailleur, which sounds awful and isnt comfortable. Better to stick with the max 27t cassette recommended in the Shimano tech docs!
Do not use the CS-6700 in any combination other than with the CN-7900/CN-7801/CN-
12T, 13T, 14T, 15T, 16T, 17T, 19T, 21T, 23T, 25T
11T, 12T, 13T, 14T, 15T, 17T, 19T, 21T, 23T, 25T
I hope this helps.
yes the 23 is harder than the 25, how about you go up a hill in your 12-25, but don't use the 25, then you know you'll be right.
I've recently bought a Hoy Sa Calobra 003 fitted with 105 group set but a Tiagra 12-25 cassette. I'm finding some hills a bit tough and want to no if I can swap the 12-25 with this?
a 12-25 tiagra won't give a lower gearing than a 12-25 ultegra so it won't help you on the hills. a 12-28 would give you a lower gear but you may have to extend the the chain a by a link or 2. the short cage mech should be able to cope with the extra range if you have a compact chain set.
hope that helps
As you increase the size of the largest cog, you may need a few extra links on your chain.
Mine works a treat.
I would advise the 11-28t option to be the best option for your needs.
My rear derailleur is an ultegra 6700
This covers most current combinations.
Can 12/23T be used toghether with Sram Rival?
Need of spacers or 100% comapatible?
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