might be silly, but i'll ask

[valkyrie]

we used to have 15" rims with tires (i don't know the size)
and from A to B (place) it's about 5 miles
if we change the rims into 17" and 205/40 tires .... i'm wondering if from A to B will be the same 5 miles
or maybe more miles since the rims are bigger
in my opinion is the same, but my friends keep insist that it will make a different milleage
don't laugh .... this debate pissed me off
so i need to know what is ur opinion
thanks guys

[erok]

If the outside diameter of the new tire is different fron the old tire, then your odometer reading will change.

[oldster]

The distance from A to B will not change. Your odometer however could read a diffence depending on whether or not the tire circumference changed from the 15 to 17 inch wheels.

[bug killa]

it'll be the same provided that ur rolling diameter is the same... you could have a 1" rim w/ a 16" tire and it would be the same as having a 16" wheel and 1"tire...

[2002GT_Celica]

You were right, this question is silly, you silly billy! :gay:

j/k

To answer your question though, if the tire diameter is changed, the amount of mileage the odometer reads may be somewhat different. I also heard from someone that you may have to re-calibrate your speedometer as well.

[NoCones]

The 205/40R17 tire is smaller in circumference than the oem tire.

Therefore, it will take more rotations of the 17" tire to get from A to B than it would have with the oem.

Therefore, your odometer will indicate more mileage than actually travelled.

And your speedo will indicate a faster speed with the smaller 205/40R17's than it would with oem's given the same actual speed.