I have flip flop wheel that will take 2 fixed sprockets or 1 fixed and 1 freewheel,
It's not meant for 2 fixed sprockets as there is only 1 side with provision for a lockring
But I've never had any problems with using fixed sprockets without a lockring if you
use the rotafix method of tightening them up
I'm currently building a geared bike as more and more of my rides are with fellow cc'ers
up in the yorkshire dales,i just cant keep up on the steep hills
The wheel is sold by edinburgh cycle coop at £59.99,mines about 6 months old
if you've got an equivalent quality road bike rear wheel maybe we could do a swap??