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 .
cycles per second
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.
Are the individual hyperglide cogs easier to get? Do you just buy a complete cassette? Have you tried it yourself?
2) 2 different parts exist for front (left) lever, one for double, one for triple.