I am starting a CR750 thread for anyone that may be interested.I live in Tasmania Australia and am presently racing this CR 750 Replica. At this time the engine is basically standard except for the ignition carbs and exhaust and as I learn to ride it I will develope the engine but at the moment it is quite fast enough after racing a G50 Matchless for the last few years. I commissioned a guy in Wodonga in NSW called David Hair to build the bike for me after I had seen the one he built for himself which he subsequently sold to someone in Ireland. Been having trouble sending pictures as they are too big but will shrink them and send soon