Bonneville America Forums Forums Technical Forums General Tech TIRES...Same numbers, different OD between brands?

I have a dunlop 170/80-15 WW that Im replacing with a maxxis 170/80-15. Same numbers but could there be a differece in overall dimensions between brands?

I wouldnt have thought so originally, but Ian had a problem with a newer tire rubbing with same numbers/different brand.

My bikes really lowered in the rear and I dont want to pay to have a new tire mounted that will rub obviously.

Any advice? Anyone with a lowered rear and Maxxis 170/80-15? My shocks are cut down to 10-3/8" if i remember correctly

Remember , Tom, how much your bike is lowered. Most guys here have only lowered and inch give or take. As I said tires since they have been made have had small differences from manufacturer to manufacturer and even from model to model from the same manufacturer. These are not big differences but in some cases enough to make a difference in a custom situation. If you can get up here when I am off work we can mount your tire and all it'll cost is lunch or dinner and if there is an issue I'll just swap em back.

For those who don't know tire sizing too here it is simplified. 170-80 15, the 170 is the width measured at the widest part of the tire when fully inflated, not the tread width. The 80 means the side wall height is 80% of the width. The 15 is the rim diameter.

well the diameter better not be 15mm, that would just be silly!