Quote:
Originally Posted by RacinNinja
The difference in diameters between the sizes is 20MM. This means the rear of the bike will be raised 10MM with the 140 tire.
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ahhh no
the 140 is the width of the tire, the next number is the aspect ratio or height in % of the width. So a 140/70 17 140(width in mm)/70 (height 70% of 140mm = 98mm) 17 (rim diameter in inches)
With that being said a 130/70 17 would have an aspect ratio of 70% of 130mm = 91mm
98 - 91 = 7mm so a 140/70 17 would be 7mm higher than a 130/70 17 if they were the same tire other than size.
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