車軚的選擇一問

2010-04-05 11:47 pm
本人的汽車的車軚以前是用195/65 R15 91H,
之後改了215/45 R17,
請問可否再改為205/50 R17?
謝謝.

回答 (1)

2010-04-06 5:23 am
✔ 最佳答案
Original:

195/65-15, 圓周 = (19.5 x 65% x 2 + 15 x 2.54) x pi = 199.233 cm

215/45-17, 圓周 = (21.5 x 45% x 2 + 17 x 2.54) x pi = 196.342 cm, = 98.6% of above, well within +/- 2% limit

205/50-17, 圓周 = (20.5 x 50% x 2 + 17 x 2.54) x pi = 199.955 cm, = 100.36% of above.

205/50-17 is actually a BETTER size than the 215/45-17 for the spec compliance. So it's ok.


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