A freewheel can also be run on the fixed side. It will thread on. I have no idea who (if anyone) makes a hub spaced at 130mm, but that's irrelevant. You can just get a long axle and spacers for a 120mm thread. It could be daunting for a newb, but the axle on IRO hubs is long enough and Tony will add spacers if you request it. irocycle.com