To take advantage of modern rubber?
Rubber is not a problem
To allow greater power output without overstressing transmission componentry?
1) seen the gearbox on one? they are not the weak link
2) More power won't make one necessarily go around a circuit quicker
To dig the sound it makes..
They sound okay onboard.
Tom Sykes owns two Kawi H2R 's and theres 41 years age difference between them.
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