I am still in the process of building my rat bike and am hung up in one area...the seat. I am using a 16'' frame with a 16 wheel in the rear and a 20 up front. The bars some crazy homemade ones that set you pretty far back to where when you pedal your almost garaunteed to wheelie :lol: ! My problem is that since I can't find a comfortable seat position, I have decided to go whithout a seat and can't figure out what to do with the seat tube jutting out (I'd rather not cut it off) I thought about something like a shift knob but still can't come up with anything. Any suggestions would be appreciated! -RR