I'm thinking of building up a 700c rear coaster brake wheel for my track frame. Anyone ever done this before or have insight into why it might be a bad idea, asthetics aside? I'd also be interested to find out where I could get a 32 hole coaster brake only hub (NOT the nexus, 3 speed or otherwise). It seems like it would be a good idea to me. The only major problems I can see would be is have alot of weight in the back and getting a hub with as decent bearings as I have now (sealed or at least Shimano).