Happy new year folks.

It is time for me in the new year to build my long awaited single speed bike. I have had a track geometry frameset for a while and this Xmas I bought Vuelta Track Zerolite wheelset. The rear wheel features a flip flop hub where one side has two sets of distinct threads, and the other side has just one. I suppose the former is for cog and lockring and latter for freewheel.

However, I would like to put freewheel on both sides. Based on google searches, I think that this is possible, but just wanted to make sure before I went out and bought the parts.

Assuming this is possible, I would like one free wheel to be helpful in riding substantially steep mountains (6-15% grade). I have a century coming up in May 2012 and would like to have a regular freewheel on one side (say 16T) and a climbing friendly freewheel on the other. Should I choose 17T or 18T for that? My chainring is going to be 46T.

I will have more questions coming up soon, but thats it for now. Thank you for any feedback.