Can a Motorcycle with Stock Front Tire IRC 90/80-17 be ok with IRC 100/80-17Would this make any difference?
It won't make any difference to your bikes performance.As long as it clears your swing arm and or and other thing you'll be just fine.
It'll probably make your speedometer read a little slower. Generally speedometers tend to read a little faster than you're actually going anyway so it shouldn't be a big deal. It'll also be a little tighter fit under your fender but should work. I've ran larger front tires before with no problems.
