BRZ _ U . book 404 ページ 2022 年 3 月 29 日 火曜日 午後 3 時 59 分
404
Tire Information ■ Determining Compatibility of Tire and Vehicle Load Capacities
The sum of four tires ’ maximum load ratings must exceed the maximum loaded vehicle weight (“ GVWR ”). In addition , sum of the maximum load ratings of two front tires and of two rear tires must exceed each axle ’ s maximum loaded capacity (“ GVWR ”). Original equipment tires are designed to fulfill those conditions .
The maximum loaded vehicle weight is referred to Gross Vehicle Weight Rating ( GVWR ). And each axle ’ s maximum loaded capacity is referred to Gross Axle Weight Rating ( GAWR ). The GVWR and each axle ’ s GAWR are shown on the vehicle certification label affixed to the driver ’ s door .
The GVWR and front and rear GAWRs are determined by not only the maximum load rating of tires but also loaded capacities of the vehicle ’ s suspension , axles and other parts of the body .
Therefore , this means that the vehicle cannot necessarily be loaded up to the tire ’ s maximum load rating on the tire sidewall . ■ Adverse Safety Consequences of Overloading on Handling and Stopping and on Tires
Overloading could affect vehicle handling , stopping distance , vehicle and tire as shown in the following . This could lead to an accident and possibly result in severe personal injury .
� Vehicle stability will deteriorate .
� Heavy and / or high-mounted loads could increase the risk of rollover .
� Stopping distance will increase . � Brakes could overheat and fail .
� Suspension , bearings , axles and other parts of the body could break or experience accelerated wear that will shorten vehicle life .
� Tires could fail . � Tread separation could occur .
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