Gonzo Bob

Awesome! I've got an old Ishiwata 022 frameset and I love it. I bought it "new" in 1989 but it is older than that. My guess is early 1980's, but it could be late 1970's. It was hanging up on the wall of a small bike shop I just happened to stop into while shopping just down the block, and I got it for $100 (with a seatpost thrown in). The shop owner told me it was built in Green Bay, WI. I've compared the specs and dimensions on vintage-trek.com and it seems to match closely with a 510. So maybe Trek contracted out frame building to independent builders around that time? You'd think if it was a custom builder, his/her name would be on it but the only decals are Ishiwata 022. Anyway, the spec sheets say nothing about cable guides, and lug shape, and other stuff so sometimes seeing something is required. Anyway, do you think my bike could be an unmarked Trek 510? Any feedback is greatly appreciated!