Question for Tire EXPERTS
Looking for facts - not guesses. In the event of a flat tire, What are the ramifications of using a same spec tire of a different brand but that has an outer diameter up to 1/2 " less than the origin...
Forum Discussion
As a general rule, in emergency maneuvers - the kind that should be of concern - vehicles tend to pivot around odd tires - and the more odd the tire, the worse that tendency.
In this case, we are talking a small motorhome with a different brand of tire that is 1/2" smaller in diameter.
First, this combination can NOT be used for duals. The larger diameter tire will carry more load, and that could cause a catastrophic failure of the larger tire.
Even assuming the intent is to replace one of the single tires, this still sounds like a very bad idea.
Sorry, but those dimensions are only guidelines and the tire manufacturer can use any dimensions he wants. If the specs say they are smaller in diameter, then they are smaller in diameter.
In this case, we are talking a small motorhome with a different brand of tire that is 1/2" smaller in diameter.
First, this combination can NOT be used for duals. The larger diameter tire will carry more load, and that could cause a catastrophic failure of the larger tire.
Even assuming the intent is to replace one of the single tires, this still sounds like a very bad idea.
JaxDad wrote:
…… Are you sure about the size difference?
The tire size is literally that, the size of the tire. In your case a 195/75R16 is 195mm wide with a sidewall being 75% of that which is 147mm.
That means by definition it will have an 86.4” circumference.
Sorry, but those dimensions are only guidelines and the tire manufacturer can use any dimensions he wants. If the specs say they are smaller in diameter, then they are smaller in diameter.
