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I just replaced my rear tire and found out that the tire that was on ther was 110/90-19. The tire i found on the internet seems to be the correct size 100/90-19. Can anyone verify that and what would be the benifit of running that wider tire? What would be the cons?

I have run on both sizes and prefer the 100
The 100 will give you better cornering and have been told that having a 110 on can reduce power but only slightly noticable.
I didn't notice it, but then again i don't race like it is my last race.
The 100/90 19 is recommended by Honda.