there are quite a few people with fixed MTB / cruisers tommy on here has a nice bike he fixed up
all you would really need is a rear hub
what size are the dropouts 126 120 130 136 ?
there are quite a few mountain bike hubs where the disc mount is replaced by a proprietary cog which mounts just as a disc would, fix one in and away you go fixed up and looking sharp
measure rear drops inside to inside then buy hub that would make sure it all fitted perfectly
there are quite a few people with fixed MTB / cruisers tommy on here has a nice bike he fixed up
all you would really need is a rear hub
what size are the dropouts 126 120 130 136 ?
there are quite a few mountain bike hubs where the disc mount is replaced by a proprietary cog which mounts just as a disc would, fix one in and away you go fixed up and looking sharp
measure rear drops inside to inside then buy hub that would make sure it all fitted perfectly