my beater bike is a 1991(ish) Specialized Sirrus. It's a 3x7 w/ Suntour Edge components. Unfortunately, these components suck, so I'm ready to give them up.
The rear hub is a freewheel style hub, so it has threading to put a SS freewheel on it. The problem is, according to Sheldon and others, if I thread a BMX freewheel on there, the chainline will be way off.
Apparently I need to re-dish the wheel and re-space the rear axle.
How hard is this to do? I've trued wheels before, but I've never built them completely. Would I have to buy new spokes?
And just b/c threads w/o pictures suck, here's what my bike COULD look like if it were properly taken care of and had a double crank instead of a triple.