Sportbike Timeline

I thought I'd try somethig a little different and generate some timelines based on types rather than makes. The first of these is the sportbike timelines. 

First there's the 600 or super sport group. Started by Kawasaki in the 1980's with the GPz550. This category has some of the best sellers (for the US anyway). I've also included Ducati's 748/749/848 bikes and Triumph's Daytona range.

Next up is the 750 four cylinder group, which really got started with Honda's V4 Interseptor. Suzuki took it to the next level witht the GSX-R750. The category died out in the 1990's with the bump World Superbike displacement from 750 to 1000cc's (for four cylinders). Today only Suzuki continues with the 750.
While four cylinders were limited to 750cc's, V twins were allowed 1000cc's. Ducati is the quintessential V twin sports bike, and contiues to lead the way. In the late 1990's Honda and Suzuki took a break from four cylinder bikes to create V twin sports bikes, neither of which is around today. Aprilia came out with Italy's other V twin and recently there are three new comers to the V twin superbike with KTM, Buell, and BMW.
Finally there's the open class. These bikes are 1000cc four cylinder bikes that became the premier class in the early 2000's. Yamaha got the ball rolling with the R1, Suzuki eventually came out with the Gixxer 1000, then Honda and Kawasaki came along. Outside of Japan there has been a few other open classers from Triumph, Benelli, and MV Agusta. Aprilia and BMW will be joining the four cylinder open class soon as well.
This last timeline is for a few exotic sports bike that don't fit well anywhere else, including the Honda NR, Ducati Desmosedici, and MV Agusta CC. I could have included some Bimota, but I have a timeline for them comming as well.