Originally Posted By: 92saturnsl2
I'm curious as to why/how manufacturers specify a certain OEM tire size, and the resulting priorities.
It is not too difficult.
1. They evaluate the load capacity of the tire and the maximum speed rating.
2. A wider tire provides better traction so a performance car has better chances to get wider, low profile tires.
3. A narrower tire generally gives better fuel economy. So a small economy car usually gets narrower, high profile tires.
I'm curious as to why/how manufacturers specify a certain OEM tire size, and the resulting priorities.
It is not too difficult.
1. They evaluate the load capacity of the tire and the maximum speed rating.
2. A wider tire provides better traction so a performance car has better chances to get wider, low profile tires.
3. A narrower tire generally gives better fuel economy. So a small economy car usually gets narrower, high profile tires.