Tire SizeThe following examples show the different parts ofa tire size.Passenger (P‐Metric) Tire(A) Passenger (P‐Metric) Tire : The UnitedStates version of a metric tire sizing system.The letter P as the first character in the tire sizemeans a passenger vehicle tire engineered tostandards set by the U.S. Tire and RimAssociation.(B) Tire Width : The three‐digit number indicatesthe tire section width in millimeters from sidewallto sidewall.(C) Aspect Ratio : A two‐digit number thatindicates the tire height‐to‐width measurements.For example, if the tire size aspect ratio is 75, asshown in item C of the light truck (LT‐Metric) tireillustration, it would mean that the tire's sidewall is75% as high as it is wide.(D) Construction Code : A letter code is used toindicate the type of ply construction in the tire.The letter R means radial ply construction; theletter D means diagonal or bias ply construction;and the letter B means belted‐bias plyconstruction.(E) Rim Diameter : Diameter of the wheel ininches.(F) Service Description : These charactersrepresent the load index and speed rating of thetire. The load index represents the load carrycapacity a tire is certified to carry. The speedrating is the maximum speed a tire is certified tocarry a load.7-60Ofrecido por www.electromanuales.com
