Originally Posted by
mountaindave
If it looks like some of the teeth on the sprockets are shorter than others, that was on purpose to assist with shifting.
I’ve done what was suggested by vrktyg (a la Sheldon) to HG cassettes sprockets and it works beautifully. 7s HG still exist and typically don’t use spiders for the largest sprockets. Just be sure to keep the 13t threaded sprocket.
What kind of hub do you have on your wheel?
I currently have a Shimano 105 FH-1051. The rim that hub is laced to is tubular, and I'm getting lots of recommendations to not buy tubular tires and try to get another set of wheels with clincher rims. I think ideally I would find some wheels that are 700c, clincher, and 7speed compatible (FH1055 or Shimano 600 6401 would be great because they take uniglide or hyperglide cassettes) but so far any wheels I see that are spaced at 126mm are for freewheels (not freehubs). There are also not that many options on ebay either. Appreciate the info on the shorter teeth!