276°
Posted 20 hours ago

SHIMANO 105 CS-HG700 11-speed cassette, 11-34T One Size,Silver,ICSHG70011134

£31.52£63.04Clearance
ZTS2023's avatar
Shared by
ZTS2023
Joined in 2023
82
63

About this deal

Finally, the 'styling' of the chainrings is just that, since all the hollow chainsets are made with a solid inner casting glued to a thin pressed alloy outer shell, so it's only styling as the structure is in the inner casting. So they could have made them all match and mix nicely, but they deliberately chose to make them different, to restrict interchange.

The most common system is the Shimano 11-speed HG-style freehub, which has 9 splines. Most Shimano groupsets up to the 11-speed era used this style of freehub. SRAM groupsets prior to the current generation of 12-speed groupsets also used the same freehub design, although there are a handful of exceptions with the larger cassette ratios on their 1×11 groupsets. If you’ve read everything above, looked at the pictures, and come to the conclusion that there’s not all that much difference between 105 and Ultegra components, you’re right. They work in the same ways, the shaping is the same and so is the engineering. There are no major technological features in the Ultegra groupset that aren’t included in 105. For example, at the lower end of the cassette, you can have as little as a one-tooth jump between the early cogs, and still have the range at the easier end. If you were running a 7- or 8-speed system, for example, in the same range, the jumps would be bigger. This setup allows me to still ride in the Peak District at 60 years old and is in no way a soft option but allows me to average 14mph over very lumpy terrain riding solo.To assemble and disassemble this cassette you will need specific cassette tools. These can be found here.

Where an 11-28 would have been considered an ‘easy’ training cassette a few short years ago, the smallest cassette available for a Shimano Dura-Ace R9200 is an 11-28. That might not sound like much but, when you consider pro riders would typically ride on 11-23 or 11-25 cassettes, it’s a sizeable difference. If a compact chainset isn't small enough, you can go lower still with a sub-compact like the FSA Energy. These typically have 46T and 30T chainrings for a roughly 10 percent drop in gears. So to summarize, if you are a competent home mechanic you can go way beyond manufacturers recommendations which are only there to cover themselves for warranty reasons.

GET IN TOUCH

Put the ratios you already have into this and see what changing the cassette or chanrings would do for your set up. If you are still using a triple crankset, you may have sufficient overall range with a road cassette, but this is a fairly specialist application these days. If you wanted to use an 11-34 cassette, as well as buying the relevant cassette, you would need to buy a compatible rear derailleur. In this example, it would be an Ultegra R8050-GS or 105 R7000-GS rear derailleur. The GS denotes that these are ‘medium cage’ derailleurs. The same rule applies to Shimano Di2 derailleurs.

This saves weight and, since it isn’t subject to wear from the chain, the carrier is often made of a lighter material – carbon fibre in the case of Dura-Ace cassettes In response to your question, basically the spec charts show that the materials used in Dura-Ace, Ultegra and 105 vary depending on the product. Broadly speaking all products use anodized or painted aluminium but more CFRP is used at Dura-Ace level and more steel is used at 105. For example see here:

Rear derailleur capabilities

The weight savings aren't spread evenly. If you were looking at getting some Ultegra bits You'd be hard pressed to justify upgrading from a 105 chain, for example, to net the 3g weight saving that gives. The biggest saving in absolute terms is the Dual Control levers (62g) and the biggest in terms of percentage is the cassette (17% lighter). The second is interesting in that the cassette is often a place where bike manufacturers spec down as it's not an obvious downgrade. I don't have any info on the alloy blend of 105 but if you look at the finish treatment this also differs to other more expensive groupsets. Above all though, if 105 is on a winter bike (ie being ridden in wet weather with overshoes etc) and Dura-Ace is on a summer bike then certainly it will appear that 105 wears faster. It's difficult to compare similar riding conditions at the same time of year but I'd wager that more people take greater care of their Dura-Ace bikes than their 105 bikes. Overall it looks to me that usage rather than product specification is the primary defining factor in longevity.

Asda Great Deal

Free UK shipping. 15 day free returns.
Community Updates
*So you can easily identify outgoing links on our site, we've marked them with an "*" symbol. Links on our site are monetised, but this never affects which deals get posted. Find more info in our FAQs and About Us page.
New Comment