BohicaBob wrote:
It is a wise practice to never mount a tire larger than the rim was designed to support. This is very important safety and handling issue.
And, of course, you may have another issue: the larger tire interfering with your swingarm. On my '78 KZ1000, I run a 130 X 18" Bridgestone SE11 rear tire on a DID 3.00 X 18" rim and there is very little clearance between this tire and the engine-side of the stock swingarm, so much so that if I don't have the rear wheel properly centered, the tire will rub against the swingarm....
Dittos.
I've noted the same issues, even running a 130 x 16" rear (with rim locks) on a stock KZ swingarm. Leave the tire pressure a little low for traction, wank it up *real* good for a smokin' hole-shot and find out a little later that a fair contribution to the fog was coming from the sidewalls.
With wider tires, there's also an issue of a smaller tread profile meeting the pavement at greater lean angles as a result of the increased radius of the tire section. Seems counter-intuitive, but that's geometry for you. Not as much of a problem with a soft-compound tire, but a wider, harder meat on the a$$ end will break loose sooner in a hard turn than a narrower tire.