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Campagnolo Micron Ergopower levers?

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Campagnolo Micron Ergopower levers?

Old 08-10-19, 06:25 AM
  #1  
Road Fan
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Campagnolo Micron Ergopower levers?

Asked this at Road and got crickets, then I googled it and the best thing I got was my own BF posting!

Does anybody here know what's unique about the Micron variant on Egopower? What I've seen are Chorus, carbon, Gen 2 lever design, and marked Ultra Micron and QS Micron for right and left functions, respectively. But they seemed to be contemporary with Escape and QS. Same? Different?

I'm pretty sure rear levers work pretty much like my old metal Veloce, which is 10 sp and just clicks up to achieve 10 positions. My othser ones do the same thing, respectively for the 8sp, 10sp, and 11sp. But the lefts have a lot of variety. My 10s Veloce has a large number of small clicks up and down, allowing precise placement and feathering up and down from any position, double or triple, and wife's 1997 Mirage 8sp triple seems to do the same thing. I haven't used a QS full system yet, but said to click two positions for double, with zero free play. Modern (2012-ish?) Powertorque Athena 3x11 is different, clicking up three positions to control the small and middle rings, and one extra position for the big ring. And there may be other patterns, I don't know what Ultrashift does.

But does anybody know what Ultra Micron and QS Micron do? Direct experience? Previous owner? Have the old marketing literature?
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Old 08-10-19, 07:05 AM
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https://lmgtfy.com/?q=campagnolo+ult...n+vs+qs+micron
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Old 08-10-19, 10:28 AM
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Thanks but sorry, I’m not looking for “ultra micron versus qs micron.
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Old 08-10-19, 12:35 PM
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That was the last direct question you asked. There were a lot of question marks in your post.

Perhaps this RBR old post will answer you better.

https://forums.roadbikereview.com/ca...tc-236410.html
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Old 08-10-19, 03:12 PM
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Micron is Campagnolo for "we desperately need product differentiation between tiers" and signified that Chorus was neither Escape (later known as Powershift) nor was it Record which was "Ultra", but it's basically Ultrashift. I believe Campagnolo also stopped marketing Chorus as just as good as Record, just not as light weight during those years. It was only used for a couple of years before Campy revamped their lineup.

QS is quick shift from when Campy was messing with FD cable pull.
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Old 08-10-19, 09:39 PM
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No, jiangshi, the key question was “But does anybody know what Ultra Micron and QS Micron do?” Not how they compare to each other.
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Old 08-11-19, 05:39 AM
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I thought this post answered that directly:

https://forums.roadbikereview.com/ca...ml#post3145713
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Old 08-11-19, 05:36 PM
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Originally Posted by jiangshi View Post
I thought this post answered that directly:

https://forums.roadbikereview.com/ca...ml#post3145713
I don't see the word "Micron" in that post, sorry.
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Old 08-13-19, 01:10 AM
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Micron and Micron QS were differentiated by the fact that:

RH lever had a composite, not a metal index spring mount ring, and an alloy fixing bolt that secured all of the internal components together from the rear, Torx T20 head (rather than the steel variation used in Chorus, 3mm AK head). The cable ratchet bushing was heavily drilled out and coated to give better cable relesae and a smoother action over the index springs.

LH lever was redesigned internally so that on a double system, from small ring to large, provided a QS FD was used with a Campagnolo 10s chainset with original rings (not copies) and a compatible cassette range (as this affects the compound angle that the chain comes away from the chainring at) and cable tension is correct, only one full sweep of the inner lever is needed to go from the FD as far left as it ever needs to be (adequate inner clearance on small ring / big sprocket) to as far right as it ever needs to be (correct clearances when on big ring and small sprocket). The full range of 10 sprockets at the rear was available on the big ring with no requirement to trim, the two intermediate clicks were used to trim on the inner ring only. This signalled a change from previous iterations.

If used with a triple, the QS left hand shifter utilised the first sweep to move the chain from small to middle ring and the next full sweep of the finger lever to take the FD from middle to outer ring where the ability to engage all 10 sprockets at the rear with no chain rub and no trim required was repeated, a differentator against the Shimano 3 x 10 road bike systems of the time. Intermediate clicks were used to trim on the small and middle rings.

The QS design philosophy was repeated on the Escape lever (albeit with a different, gated ratchet or escapement type mechanism), so it could be set up the same way, with no trim needed on the big ring provided all the specified preconditions were met.

The action on both levers was essentially the same as current UltraShift but to make the sweeping statement as above that they are "the same" is incorrect, as the internal components don't bear much relationship to each other. The physical mthod that is used to drive the internals in each direction is the same (sprung levers bearing a drive pawl that engages a drive ring) but the Micron (and all Gen 1 and Gen 2 levers that are not Escape mechanism) use two springs directly engaging an ungated ratchet, wheras UltraShift uses two clutch plates tensioned against each other with two (or in the case of a LH lever, 3) compression or thrust washers.

UltraShift LH levers are not suitable for triple systems, a specific Triple PowerShift lever was provided for Veloce, Centaur 10 and Athena 11 triple.

HTH?

Last edited by gfk_velo; 08-13-19 at 01:26 AM. Reason: grammar, spelling, clarity
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