sjs do a Sovus flip-flop hub too for only £15 but it's 110mm, so you'd need to get it respaced. They will do that for you for another fiver. Add another fiver for postage. I would also favour a CXP22 over an Open Sport and they are much the same price. It's not the best hub in the world but will certainly get you started and you can upgrade at a later date when you've had a chance to see what's around.
sjs do a Sovus flip-flop hub too for only £15 but it's 110mm, so you'd need to get it respaced. They will do that for you for another fiver. Add another fiver for postage. I would also favour a CXP22 over an Open Sport and they are much the same price. It's not the best hub in the world but will certainly get you started and you can upgrade at a later date when you've had a chance to see what's around.