Monday, 9 February 2009

TYRE SIZE DESIGNATION


BIAS TYRE
Ex:5.90-15 6PR





5.90 - Thickness of Tyre from shoulder to shoulder is 5.90 inches

15 - Rim diameter 15 inches

PR - Ply Rating - Means Maximum recommended load which the Tyre can carry



RADIAL TYRE


Ex:185/60 R14 82H


185 - Thickness of Tyre from shoulder to shoulder is 185 mm.

60 - Aspect ratio* is 60%.

R - Means Radial Tyre.

14 - Wheel rim diameter 12 inches.

82 - Load index is 82. The maximum load a Tyre can carry.

H - The Speed symbol. Maximum speed of Tyre.



* ASPECT RATIO


Aspect Ratio - Ratio of section height to section width








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