First bike I ever took to the track was my 2006 S2R-1000 Ducati Monster. I had fun on it, but I was always worried about dropping it and it was definitely not a great track bike. Bought myself a 2005 ZX6R which had some nice track mods, and I really improved a lot on it. When it decided to barf up its transmission, I moved to a really nice 2009 GSXR-750 track bike, which I managed to improve my lap times significantly. Then I made the mistake of buying a 300 and now that is pretty much all I ride anymore. Anyone need a very fast GSXR-750? I seem to have one sitting a lot in my garage
Looking back I would have gotten faster and more confident quicker by learning on the 300. When some wrecked 400s come on the market I'll probably trade up, but that's really as far as I want to go back up the horsepower and weight ladder again. The 300/400 are as much, if not more fun then the bigger bikes and they are a lot cheaper to run.