New Shimano CUES groupset

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zenitb
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Re: New Shimano CUES groupset

Post by zenitb »

freiston wrote: 7 Mar 2023, 10:39am That was an interesting video with some new insight - I found particularly interesting that it seems the chainsets will have square tapered bottom brackets and that the rear wheel bearing will be on the inside of the drive-side flange instead of outer end of the freehub as the current cup and cone Shimano hub is.
I sort of expected the sealed bearing positioning since that's essentially how my SRAM (actually Formula) hubs work, and everyone else's like Hope etc..Although Hambini measures the bulge and suggests that the drive side bearing is going to be bigger than everyone else's (8, 9 or even 0 series bearing suggested)...which, if true, would chime with the durability theme?

The retention of the square taper bottom bracket is surprising I agree, given Shimanos attempts to ditch it at Deore level, and their love of the patented HT2 alternative. Square taper is fine though as far as I am concerned - waiting to hear how they are making it more durable though 😉
RJC
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Re: New Shimano CUES groupset

Post by RJC »

Bmblbzzz wrote: 6 Mar 2023, 5:54pm I think I've read somewhere that the sprocket pitch is the same as current Shimano 11-speed.
Linkglide was said to incompatible with hyperglide due to different gear pitches although I've not seen a detailed explanation given they are fitting the same number of cogs in the same space.

Also I wonder if the 3x durability claim also holds when comparing to say 8 speed.
AndyK
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Re: New Shimano CUES groupset

Post by AndyK »

zenitb wrote: 7 Mar 2023, 11:07am
freiston wrote: 7 Mar 2023, 10:39am That was an interesting video with some new insight - I found particularly interesting that it seems the chainsets will have square tapered bottom brackets and that the rear wheel bearing will be on the inside of the drive-side flange instead of outer end of the freehub as the current cup and cone Shimano hub is.
I sort of expected the sealed bearing positioning since that's essentially how my SRAM (actually Formula) hubs work, and everyone else's like Hope etc..Although Hambini measures the bulge and suggests that the drive side bearing is going to be bigger than everyone else's (8, 9 or even 0 series bearing suggested)...which, if true, would chime with the durability theme?

The retention of the square taper bottom bracket is surprising I agree, given Shimanos attempts to ditch it at Deore level, and their love of the patented HT2 alternative. Square taper is fine though as far as I am concerned - waiting to hear how they are making it more durable though 😉
CUES chainsets are available in both square taper and Hollowtech II, though the double-chainring HTII models seem to be intended only for 11-speed.
PH
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Re: New Shimano CUES groupset

Post by PH »

zenitb wrote: 7 Mar 2023, 11:07am The retention of the square taper bottom bracket is surprising
A fair few E-bike crank arms are ST, including some of Shimano's own Steps system.
Bmblbzzz
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Re: New Shimano CUES groupset

Post by Bmblbzzz »

RJC wrote: 7 Mar 2023, 11:32am
Bmblbzzz wrote: 6 Mar 2023, 5:54pm I think I've read somewhere that the sprocket pitch is the same as current Shimano 11-speed.
Linkglide was said to incompatible with hyperglide due to different gear pitches although I've not seen a detailed explanation given they are fitting the same number of cogs in the same space.
Hmm. I thought I'd read it was the same, but I'll have to go back and check. And of course same pitch doesn't necessarily make it completely compatible!
Also I wonder if the 3x durability claim also holds when comparing to say 8 speed.
Not a comparison point as they won't be making 8-speed CUES.
fastpedaller
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Re: New Shimano CUES groupset

Post by fastpedaller »

zenitb wrote: 7 Mar 2023, 11:07am Square taper is fine though as far as I am concerned - waiting to hear how they are making it more durable though 😉
Making square taper more durable than HT2 shouldn't be difficult - as most users have found this to be true!
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Lance Dopestrong
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Re: New Shimano CUES groupset

Post by Lance Dopestrong »

Square taper made from soap and ridden on a rainy day would outlast HT2.
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zenitb
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Touring or Tandem CUES setup ?

Post by zenitb »

rotavator wrote: 28 Feb 2023, 11:48pm There is no triple chainset but the 32-46T double with the 11-45T cassette will give a give me a very useful gear range and will suit plenty of other "average" cyclists I guess.
I had a go at this Rotavator. Looking at the 11 speed U6000 groupset it looks like there is a 46-30 chainset, a 11-45 cassette, and compatible rear mech with a whopping capacity of 48 (one better than the already big 47 capacity of the exising RD-T6000 rear mech)

IF (big if) I have this right then I get a range of 18.3 to 115 inch on an average 700C tourer wheel

http://www.gear-calculator.com/?GR=DERS ... gearInches

A bit lower on my 26" wheel tandem - 17.3inch to 109 inch. If this works and is robust then I might be interested
Possible tandem setup ?
Possible tandem setup ?
http://www.gear-calculator.com/?GR=DERS ... gearInches

here are the bits I used
FC-U6000-2B
FC-U6000-2B
Attachments
RD-U6020-11
RD-U6020-11
UpWrong
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Re: New Shimano CUES groupset

Post by UpWrong »

So Dynasys was short lived. I think I'll be stocking up on SRAM X-series and hyperglide whilst I can.
Bmblbzzz
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Re: New Shimano CUES groupset

Post by Bmblbzzz »

Dynasys was introduced in 2010 and the introduction of Cues doesn't necessarily mean the end of another system.
RJC
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Re: New Shimano CUES groupset

Post by RJC »

Bmblbzzz wrote: 7 Mar 2023, 1:51pm
RJC wrote: 7 Mar 2023, 11:32am Also I wonder if the 3x durability claim also holds when comparing to say 8 speed.
Not a comparison point as they won't be making 8-speed CUES.
Maybe not, but if I was building a cheap knockabout bike this would be a comparison I might make.
AndyK
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Re: New Shimano CUES groupset

Post by AndyK »

Yes, seems a strange thing to say. As far as I can make out DynaSys is still very much a thing in the higher-level groupsets.

Anyway, I didn't pick up much more info at IceBike last week, not least because I managed to miss the CUES presentation in the morning. :-( Got a closer look at the new kit on a bike and in a glass display case. I understand from a friend that bike shops in the Shimano Service Centres scheme have been made privy to rather more detail about CUES.

Hard to see in the photo but I think I'm right about the 11-speed cassette: its back is slightly concave, meaning the spacing can be the same as the 10-speed but bringing it closer to the spokes. Interesting that the cranksets have done away with the traditional Hollowtech II 2-bolt clamp technique: the axle is now fixed to the non-drive crank and there's a SRAM-style tension adjuster ring. If nothing else this should reduce the occurrence of falling-off cranks resulting from poor HTII installation...
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thelawnet
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Re: New Shimano CUES groupset

Post by thelawnet »

The points I can see.

Firstly, this nothing new, just a lot of marketing codswallop as usual, a re-branding of 2021 linkglide e-bike components as well as other older components.

So:

* linkglide chain (there is only one) are rebranded 11-speed MTB chains, or you can just use any 11-speed road/MTB chain (which just vary according to their coatings). there are no new products or even rebranding here, and you don't need to buy a linkglide/cues chain.
* linkglide cassettes fit onto all but 12-speed MTB hubs (which are built for 10t small cogs), and they match with the linkglide shifters.

There are:

* LG700-11 or LG400/LG600-11 (same thing) in 11-45t or 11-50t options. The 700 is 609g in 50t, while the 600/400 is 780g in 50t.
* LG400-10 or LG300-10 in 11-39t, 11-43t, or 11-48t. They weigh the same only different coatings.
* LG400-9 or LG300-9 in 11-36t, 11-41t, or 11-46t. Again, different coatings only.

The 9-speed cassetes are all new.

The BL-U8000 is just a rebrand of the BL-T8000 (long lever). It's a hydraulic lever, and pretty pointless as a new product and most bikes will ship with a non-Cues brake set.

The shift levers:

* SL-U8000-11 (rebranded M8130, but now there is both -R and -L, whereas M8130 was R-only)
* SL-U6000-11 - cheaper version of U8000 without the instant release etc.
* SL-U6000-10 (rebranded M5130)
* SL-U4010-9 - this is Alivio level
* SL-U4000-9 - this is Acera level, lacking two-way release

The rear derailleurs, which work across speeds:

* U8000 (rebranded M8130) for 1x11-50t or U6000 - same thing but cheaper jockey wheels
* U8020 for 11-45t with a front derailleur, or U6020-11 with the cheaper jockey wheels
* U6020-10 for 11-39t, with a front derailleur
* U4000 for 1x11-46t or 1 x11-41t
* U4020 and U3020 for 11-36t with a front derailleur

The cranksets are:

* U8000-1 is 40t, 42t
* U6000-1/U4000-1 is 30t, 32t, 40t, 42t

Then:

* U8000-2, U6010-2 is 46/32
* U6000-2 is 46/30 or 36/22
* U4010-2 is 46/30, 40/26, or 36/22
* U4000-2 is 40/26 or 36/22

Previously you would use any 1x crankset; now there are doubles, and matching shifters. They claim no compatibility between the cranksets and existing stuff, but it seems you could just older cranksets and shifters if you wanted to.
zenitb
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Re: New Shimano CUES groupset

Post by zenitb »

thelawnet wrote: 14 Mar 2023, 2:15pm ..
Firstly, this nothing new, just a lot of marketing codswallop as usual, a re-branding of 2021 linkglide e-bike components as well as other older components.
hmm.. interesting .. so not as radical as we thought ...
thelawnet wrote: 14 Mar 2023, 2:15pm * linkglide chain (there is only one) are rebranded 11-speed MTB chains, or you can just use any 11-speed road/MTB chain (which just vary according to their coatings). there are no new products or even rebranding here, and you don't need to buy a linkglide/cues chain.
Very interesting ... somehow this fact escaped all the excited commentary from the cycling press...
thelawnet wrote: 14 Mar 2023, 2:15pm * linkglide cassettes fit onto all but 12-speed MTB hubs (which are built for 10t small cogs), and they match with the linkglide shifters.
So I am assuming the spacing between the cogs on the cassette is always the same, its just the 10 and 9 speed cassettes miss out some of the cogs, and have a sort of weird gap or spacer somewhere on the cassette ? And that the spacing between the cogs is akin to the current 11 speed MTB spacing ?
thelawnet wrote: 14 Mar 2023, 2:15pm ..
Previously you would use any 1x crankset; now there are doubles, and matching shifters. They claim no compatibility between the cranksets and existing stuff, but it seems you could just older cranksets and shifters if you wanted to.
That definitely helps illustrate what's going on here thelawnet. Great analysis as usual. I like the way you have highlighted where existing products have simply been rebranded. As you say this is classic Shimano !!!
thelawnet
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Re: New Shimano CUES groupset

Post by thelawnet »

zenitb wrote: 18 Mar 2023, 11:17pm Very interesting ... somehow this fact escaped all the excited commentary from the cycling press...
I suppose the point is that this was launched as 'durable, but heavy, for ebikes' 2 years ago https://www.pinkbike.com/news/shimano-i ... train.html, and now they are saying 'durable for everyone', and downplaying the 'heavy' part.

IMO it's not such a big difference in that even if the cassette wears out less frequently, I'm not sure if you change your chain frequently that cassettes wear out particularly frequently in the first place, and the bike still needs maintenance of everything else at the same frequency.

They haven't given any weights for the cranksets, I assume they are the same as the old Deore/XT stuff in that respect.

Also this is a 'leisure' product, so they don't want to get rid of the existing mess/line-up that I can necessarily see, in that there will still be a need for a lower-end groupset than this, which starts at '4000' level. There have been any number of past 'leisure' groupsets, but what they are not doing is replacing their MTB or road line-up with this. It seems that this will eventually be an alternative for people who want to make hybrid drop bar bikes with mtb gearing or whatever.

This is basically a replacement for their 'T' components.

There you had 48-36-26 and 44-32-24 triples, no doubles. The triples were paired with 11-36t cassettes. This gives a ratio of 48/11 or 26/36. A range of 6.

I should draw attention to the Cues sprockets:

11-13-15-17-20-23 is fixed across ALL of the linkglide cassettes

The options are then:

* 23-26-30-36 (2x9)
* 23-26-30-36-43 (2x10)
* 23-26-30-36-43-50 (1x11)

* 23-26-30-34-39 (2x10)
* 23-26-30-34-39-45 (2x11)

* 23-28-34-41 (2x9)
* 23-28-34-41-48 (1x10)

* 23-28-36-46 (1x9)


The double cranksets are:

46/32, 40/26, 36/22 with a 14t gap, which work with any of the 2x setups above

OR

46/30, which is for the 11-36 2x9, the 11-39 2x10, or the 11-41 2x9.

The hollow-armed (lighter) U8000 crankset is only available in 46/32, or 42 or 40t 1x. (I guess because 26/45 and 22/45 they see as unnecessarily law)

It can be seen that this ends up with a range of around 5.8x, which is not too bad. (obviously singles are going to have bad ranges).

It can also be seen that the 46/30x11-41 2x9 gives one of the better gear ranges in the line-up. It's almost certainly lighter than the 11-45t 11-speed cassette. It seems Shimano were lazy in creating the 11-39t 10-speed cassette, and should add an 11-41 10-speed cassette at a later date.....

While the U8000/U8020 rear derailleurs all have clutches, for some reason the U6020 (2x RD) is missing it. This means, for example, that if you want the 11-39t 2x setup, then you won't get a clutched derailleur, you are forced to use the 11-45t 11-speed cassette and its matching derailleur if you want a clutch
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