Subaru Legacy: 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 (“GAWR”). 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.
Calculating total and load capacities varying seating configurations
Calculate the available load capacity as shown in the following examples:
Example 1A
Vehicle capacity weight of the vehicle is 800 lbs (363 kg), which is indicated
on the vehicle placard with th ...
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.
● Veh ...
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