mga Bosing,
i got these results from:
http://www.1010tires.com/TireSizeCalculator.asp
how true is this? is it really safe to upgrade to 215/55/R17? please advise.
<Stock Tire - 205/65R15> <Tire 1 - 215/55R17>
<Section Width: 8.07in 205mm> <Section Width: 8.46in 215mm>
<Rim Diameter: 15in 381mm> <Rim Diameter: 17in 431.8mm>
<Rim Width Range: 5.5 - 7.5 in> <Rim Width Range: 6 - 7.5 in>
<Overall Diameter: 25.49in 647.44mm> <Overall Diameter: 26.31in 668.27mm>
<Sidewall Height: 5.24in 133.09mm> <Sidewall Height: 4.65in 118.11mm>
<Radius: 12.74 in 323.59 mm> <Radius: 13.15 in 334.01 mm>
<Circumference: 80.07in 2033.7mm> <Circumference: 82.65in 2099.3mm>
<Revs per Mile: 816.0> <Revs per Mile: 790.5>
<Actual Speed: 60mph 100km/h> <Speedometer1: 58.1mph 96.8km/h>
<Speedometer Difference: -> <Speedometer Difference: 3.225% too slow>
<Diameter Difference: -> <Diameter Difference: 3.12>
Warning!!!
when changing tire sizes, we recommend staying within 3% of the original tire size. any more than this and you face the risk of brake failure.
ty a lot!
P.S.
which is better with respect to safety & driving comfortability?
215/55/17 or 225/50/17
Note:
215/55/17 = 3.12%
225/50/17 = 1.42%
GOD BLESS!