I personally have been running TS1's since 1987, always with nicasil and love them. I've never had a linered cylinder as nobody has ever done me one, and that's probably the only reason. I am going to be building my Italian gp 150 0ver the coming winter with a large block motor. Now firstly I was going to do a TS1 again, but no matter how much I thought about and the possibility of different specialised set ups, it seemed silly having two bikes with the same kit at the end of the day. I thought of possibly having a piston port job, say Rapido or Mugello, but as I am also finishing off a stage 4 jet 200 ,decided against this. The Avanti seemed another option until I began following the saga of the GT 200 Big block. I have now chosen to get one at the end of the year and have a cast barrel as a second rally bike. I hope I am choosing wisely on what I've seen and read. Only time will tell. Another question is, regards Ali barrels, how do folk rate Ceramic plated Ali barrels?cheers,Speedy.
