I have a bum front rim on my ducati monster 99 750. I loose air in a week do to the rim being a little banged up. I want to get a striaght rim with no issues but I remember when i initially was looking into buying a rim there was an issue of different sizing pertaining to the axle size changing around this time period. My rim is a 17 x 3.50 not sure of axle. am i correct in this assumption? can anyone assist?