Rampar FF System
I want to covert my Rampar R-4 into a fixed gear. It is a 12 speed from the late 70's or early 80's (1982?). I read that the ff system would be unsafe because of the freewheel in the bottom bracket, but with a fixed gear bike, wouldn't I remove the freewheel anyway. There is a lockring on the casette that I have to get off, but could I take off the freewheel before I take off the lockring. Also, where can I find a 3/32 track sprocket with 18 or 20 tooth for the hub that is threaded, not splined. No store seems to have it.