so I have a BH flip-flop hub from the 1950s that came with a 3 speed TDC freewheel. I want to run it without a derailleur and was originally thinking of setting up with a single speed freewheel and fixed on the other side. But I'm thinking of just running the 3 speed FW as my "single" freewheel because the wheel is dished for it. I can move the chain to the appropriate size depending on the how long the climb or flat is. The freewheel is 16-18-20 with a 46T single chainring. I'm not really sure what would be best. Just throwing this out there for discussion.