Question about section width of tires
#1
Racer
Thread Starter
Question about section width of tires
I was looking at a tire size calculator at americastire and was wondering if someone could explain why a 235/45/17 tire and a 245/45/17 tire have different revs per mile? Why does the diameter size and sidewall height change due to section width?
#4
Team Owner
Exactly.
A 235/45/17 is smaller in diameter than a 245/45/17.
The sidewall of the 235/45 is 45% of 235mm.
The sidewall of the 245/45 is 45% of 245mm.
That's why we get roughly the same diameter (but not exactly.....turbonut lol) going from a 235/45 to a 255/40.
A 235/45/17 is smaller in diameter than a 245/45/17.
The sidewall of the 235/45 is 45% of 235mm.
The sidewall of the 245/45 is 45% of 245mm.
That's why we get roughly the same diameter (but not exactly.....turbonut lol) going from a 235/45 to a 255/40.
#5
Suzuka Master
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#6
Racer
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#7
Racer
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