How To Read Tires

Today we learned how to read a tire to know what all the numbers and letters mean. Every tire has their own set of numbers and letters for example P215/65 R15 89 H. The first letter on it is a P, this is the tire type. There are four different tire types P=passenger, T=temporary, LT=Light truck, and C=commercial. Next its 215 which is the width of the tire (top of tire, tread part) in millimeters so for this tire its 215 millimeters wide. The third number is 65 which means the side wall is 65% the length of the top.  The R is the construction type which there are three types, R=radial, B=bias belted, D=diagonal (bias). The 15 is the rim diameter in inches.  The 89 is the load index which tells you what the maximum load on it. And finally the H is the speed symbol, there are thirteen different symbols.

·         M=81 mph

·         N=87 mph

·         P=93 mph

·         Q=99 mph

·         R=106 mph

·         S=112 mph

·         T=118 mph

·         U=124 mph

·         H=130 mph

·         V=149 mph

·         W=168 mph

·         Y=186 mph

·         ZR=Above 149 mph

Try not to go more than what your tire reading is because if you do the tire will warp and and blow up causing an accident.