Most of my single speed parts come from Ebay, and occasionally Amazon or Jenson.
It is likely that your new wheels will be 700c rather than 27" (unless you custom build both wheels, or keep the front wheel and get a custom rear wheel.) This can often (but not always) require a new brake caliper with a longer reach.
Originally Posted by
wolfchild
If you going to convert to single speed , I think it would be a lot better to use a flip/flop hub and run front and rear brakes instead of coaster brake. Get a rear wheel with a flip/flop hub, one side fixed cog one side freewheel. Make sure to measure your rear dropout spacing before purchasing the hub.
Agreed, on both points.