Rim and Tire Change?
04-09-2005, 05:14 AM
#1
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Rim and Tire Change? The question I have is I'm changing from:
255X50X16 to 275X40X17.
How will my Speedometer read (Change.)
The turning I have is for the 255X50X16
Thanks in advance
Bruce/StoreKeeper99Z28
255X50X16 to 275X40X17.
How will my Speedometer read (Change.)
The turning I have is for the 255X50X16
Thanks in advance
Bruce/StoreKeeper99Z28
04-09-2005, 11:43 AM
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Yeah, your speedometer will not be off. I switched from 245/50/16 to 275/40/17 and 315/35/17 and didn't have to adjust anything.
I think tirerack's webpage has a calculator that will give the the numbers.
I think tirerack's webpage has a calculator that will give the the numbers.
04-09-2005, 08:34 PM
#4
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At 25.7", the 275/40R17 is about half an inch shorter than 255/50R16 (26.2"), so the speed difference will be just under 2% (about 1.1 MPH at 60). The 245/50R16 is the same overall diameter as a 275/40R17 and 315/35R17, so there isn't any difference in speed with those sizes. In any case, you shouldn't notice it.
04-10-2005, 06:15 AM
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Originally Posted by TooSlow02
At 25.7", the 275/40R17 is about half an inch shorter than 255/50R16 (26.2"), so the speed difference will be just under 2% (about 1.1 MPH at 60). The 245/50R16 is the same overall diameter as a 275/40R17 and 315/35R17, so there isn't any difference in speed with those sizes. In any case, you shouldn't notice it.
Thanks for your input!
Rx Bruce/StoreKeeper99Z28
