The guy on the yellow bike was at our vintage track.. he would spin...all the way around! He did say though he was surprised at how fast my 750 did go with a street tire on it, worn one at that!
When i built the hack, I thought it up on a Wed.. got some tubing bent on Thurday..started working on it Fri, all day Sat.. had it on the track on Sunday morning!! It worked fairly well, but I had no plans to go by, no real idea of wheelplacementof the third wheel, etc. Just looked at a pic or two of a roadracing one and built it...ran it on the left side of the bike..