Been here before, and I think I know what my options are but I was wondering if there was anything I'd missed. Need a 135mm fixed hub (with LH lockring thread) and some kind of disc mount on the LHS. Currently using a Surly Ultra New Fixed Disc hub which would be my first choice. There's also a bunch of cheaper trials hubs like those from tartybikes that will take a splined cog, or I could spend more (a lot more) on Paul Components or Phil Wood. Anyone know of anything else?