Another poster and I asked similar questions this last week and were steered toward the Excess Components freewheel (Excessbmx.com). I just ordered one for $20 from Retrogression. I was willing to spend way more for a WI or Halo Clickster on my first SS, but at this price I figured why not give it a shot. On paper it looks good. Mine was shipped today so I haven't actually used it though.