Quote:
Originally Posted by DannoXYZ
Pinched rear tyre causes nervous , yet slower turn-in with unpredictable handling. This is why many, many 400 racers go down from stock 150 to 140 rear tyre. Better handling and more grip. Kawi dropped ball and didn't spec 4.5" rear rim which is better for 150 tyre. Using 4.0" rim just doesn't work well at track for performance with 150 tyre.
In both these 300 & 400 examples, it's best to use optimum tyre-size for rims you have. In our AFM races, fastest 250s use 90/120 tyres for factory wheels.
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Danno, you da man
I came here to see if I could go to a 140 rear and this was the second post I clicked on! I have heard it said, but wanted some varification, and I got it
I sort of think Kawasaki went with the 150 for vanity rather than function—I cant put my finger on it, but the combo feels a little odd. Not bad, I just thought the 140 with taller sidewall might be better. This might
show, sometimes less is more
