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  1. #1
    Senior Member masi61's Avatar
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    s.i.s. shift lever demystification please

    I am on a quest to set up a couple of 7 speed uniglide cassette wheels on my 2 vintage road bikes that have 126 mm rear triangles. I am setting up a Dura Ace 7400 7 speed UG cassette rear wheel and have also ordered a 600/Ultegra 7 speed cassette rear hub. I have also ordered what I believe to be the correct cassettes for each one through various ebay sellers. I will be looking for additional UG (uniglide) twist tooth cogs to get better ratios, particularly for the Dura Ace cassette which is just a 13-19.
    Thank you, Sheldon Brown for answering in this forum and my email so far. Its odd how questions, and increased knowledge leads to more questions but here goes:

    1) Would the Sora STI shifters work fine for the 7 speed uniglide cassettes with a non-dura ace 7400 rear derailleur? I thought of using a 9 speed Dura Ace 7703 rear.
    2) Do these Sora brifters handle a triple crank up front?
    3) I have a set of early 90's Mavic indexing downtube levers - any chance these would index properly with the uniglide 7 speed cassettes?
    4) Does anyone know of additional sources for the individual Uniglide cogs or complete cassettes? It appears biketoolsetc. has a few, as well as ebay.
    5) I do have Mavic retrofriction levers I could use, would it be less of a hassle to just use these and have a sweet friction set-up? I really would like to try indexing though, preferably with Shimano down tube braze-on levers.
    I know this is a lot of questions. Feel free to pipe in on any of them, I would greatly appreciate the dialog .

  2. #2
    cycles per second Gonzo Bob's Avatar
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    1. Probably. 7-speed spacing is just a bit wider than 8-speed.
    4. I buy mine from www.loosescrews.com Selection is limited. But you can also use Hyperglide cogs by grinding down the fat tab.

  3. #3
    Senior Member masi61's Avatar
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    Are the individual hyperglide cogs easier to get? Do you just buy a complete cassette? Have you tried it yourself?

  4. #4
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    2) 2 different parts exist for front (left) lever, one for double, one for triple.

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