So I picked up a big schwinn circuit (I have now had 3). Put some regular handlebars on it, new tires and cables, and pawned it off on a tall friend of mine.
The friend now tells me that when he rides it a crank starts coming loose. He tightens it up, but it keeps coming loose. I think this is the non-drive side crank, but I am not sure.
I haven't had a chance to look at since he told me about it. He lives a ways away, and is not very mechanically inclined. I am not sure what to tell him to look for, or what to try.
So, what is the likely problem here? Stripped threads?
What is the cheap and easy solution to the problem? Loctite? Which color?
Jared
obligatory picture of said circuit:
PS-- the lugs and wheels are black because the previous owner painted them. Or took a sharpie to them. Not sure what he was thinking