So I'm a newbie and I got one of the new varsity wal-mart bikes. I know it's cheap-o, and I know you get what you pay for, but when I bought it I wasn't sure I was going to stick with biking. Now I'm pretty sure I'm staying, but I'd still like to keep it for a while just because money's relatively tight and I'd like to learn to work on bikes with a cheap one so I don't have to worry about jacking up a big investment!
So first thing when I got it I sat down and taught myself quite a bit... I had to, the wal-mart guys assembled it like CRAP - but I got the brakes set right, the deraileur and shifters set good, etc. Now, it's riding great so far (less than 50 miles yet). The wheels aren't very true, so I'll figure that out sometime in the future.. But there's one thing I noticed when I was setting up the rear - the gears seem to 'wobble' on the centerline, as if they're just slightly off center. It's enough of a wobble that with the rear wheel free spinning and the pedals still, you can watch the deraileur move back and forth about 1/4" with the rotation of the wheel. So far this hasn't caused any operational issues, but it bugs me because I know it's not right!
So I figured this would be a good time to learn to take apart the rear hub.
Unfortunately, I'm basically stuck at the freehub. It's a shimano, supposedly; the name is all over the place... But I'm not sure what model or anything. Seems like it may be a schwinn-only one-off or something. 7-gear shimanos seem pretty uncommon anyway, and the notches where the gears slide onto the freehub are pretty different from any of the cassettes I'm seeing online.
anyway, it has a circle with little notches around the edge in the center, so I thought it used a shimano freehub removal tool. I ordered one and got it in today, but it's not quite right. The shape actually looks just right, but the diameter is not - the tool is smaller than the gap in the freehub.
So anybody know where i could get a tool to fit this bike? Or if not, is there any chance I can get a new rear wheel for a pretty minimal price that will work with the 7-speed shifter/deraileur setup that's already in place? I've looked at a bunch of shops online, and everything seems to be 8-9-10 speed...
Again, not really a hurry, it works fine right now, but like I said, it bothers me that it's not right