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发帖数: 35582 | 1 ok, assume your tire is a ring.
14 is the radius of the inner ring (by inch), so you must to keep this number
the same in order to mount your tire onto the wheel.
185 is the width of the tire (in mm), the wider the more sporty. But you don't
need a too wide tire for a regular sedan, say 195-215 is regular for a mid-size
sedan. the number in the middle the % ratio of the thinkness the tire to
the width of the tire (say, the first number)
so for the tire used on my Passat P215/55/R15, the inner ra |
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