So i didn't find out until AFTER i signed the paperwork that even the dealer didn't have studdable snow tires for my VT. So after talking with a few tire dealers, they said i needed to down size the wheel. So if i go to a 17 inch 5-bolt pattern, my question is regarding the pattern size. I see all kinds of numbers regarding the pattern size. 5x110, 5x115, 5x120.65, etc. what the heck is all that about? If I find some 5 bolt 17 inch rims for sale, how do i know they will work on my VT?