I hope that the attached pics make it, should be 6 total. On my wife's VN, black with the hwy. bars and bags, are mounted Metzeler me880 tires in the stock sizes, 100/90-19...150/90-15. On the cranberry VN, mine, I just oversized to Pirelli Route mt66 sized 110/90-19 and 170/80-15 on the rear. The pics are my best attempt to show how the tire sizes compare. I know that comparing different manufacturers is like apples to oranges, but it may help in someones decision process. Overall, the Pirellis profile measure 1/2 inch (or a bit more) wider on both tires. The Pirelli front tire clearly appears wider and taller. The Pirellis sidewalls are both also about 1/2 inch taller. Mounting the rear tire wasn't too bad after I let the tire pressure down to about 15 psi. BTW...the Pirellis ride GREAT, way big improvement over the factory 7 year old Bridgestones. I also find the oversized Pirellis very stable, moreso than the stock sized Metzelers. My humble opinions...hope it helps.