Have a Trek MTB from around the early to mid-90's...this is the bike right here (although this isn't mine):
I had been riding it until a couple years ago when the threads on the fork/headset stripped and I put it up for a while. Got a new fork, headset, etc.
Would like to take off the front derailer and just have a 1/7. I could try using the middle chainring, but would prefer to get a SS ring of the right size - would like a 38 -42 tooth, somewhere in that range.
Problem is, the chainrings on the bike all mount as 74mm BCD, and I can't find a 74mm BCD ring with that tooth count (that's SS specific with no ramps).
Any ideas where I can find one? THanks.