I think I figured out what I should get for sprockets by checking the roll off (circumference) of the two tires, the kz gave me 212.5cm, and the zx gave me 189cm. the stock (or at least what the bike has/had) sprockets are: front-16, rear-42.
By going with a 3/8ths(probly, maybe more offset?) offset 17 tooth front sprocket(Intimida2or is using this, so I know it will clear the fatter swingarm, where 16 is unknown so far), and using the kz 42 tooth rear sprocket on the zx wheel, it should give me a slightly lower ratio than stock. so the drag strip sprockets are figured out.....I think
Using the same 17 tooth front sprocket, and going with a 38 tooth rear sprocket, it should give me a higher ratio than stock for better top end and gas mileage for the street.
If anyone wants to lend their expertise on sprockets when the wheel and tire are different, please do so, as Im just playing around with numbers and ratios.
Oh, and I had to enlarge the hole in the center of the kz sprocket to get it to fit the zx wheel, I just bolted the (bad, broken teeth) sprocket that came on the wheel to the kz sprocket, and matched the holes up with a grinding drum on a drill.
07 MDP Rookie of the Year
01 ZX-12R street/drag bike. 8.97 @155.7 pump gas, dot tires, no bars, no power adders. top speed in the 1/4: 161MPH