Tire loads and speed

Tire size , load and speed

Tire sizes

The vehicle registration

Documents often show the tire sizes a vehicle should be supplied with. Talking into account axle load and maximum speed (incl , variation )care should be taken that the tires have the necessary load and speed index. In the case of v/w/y tires the maximum load deduction (for V max >210/240/270 km /h)

Must also be taken into account.

Loads

Like insufficient air pressure , vehicle overloading can lead to premature wear and tire failure . the vehicle registration documents may detail among other things the maximum kerbside  weight of the vehicle in kilograms as well as the maximum axle  weight in kilograms for the front and the rear axles .overloading can easily occur when going on holiday with a full car , roof rack and/or caravan .

Speed

The tires fitted by a vehicle manufacturer have the appropriate speed symbol considering the maximum speed .it is possible to switch to the same tire size with a higher speed index ,but tires should never be substituted for tires with a speed symbol equal to less than the maximum speed of the vehicle (incl . variation ) .

Exceptions are M+S radial winter tires : in this case ,care must be taken not to exceed the speeds indicated by the symbol on the M+S tire. Vehicles capable of higher speed than M+S TIRE SPEED SYMBOL INDICATES, must have a notice , visible to the driver indicating the maximum speeds of the M+S tires . in some countries this is a legal requirement .

For applications outside the range of the Y speed symbol , the service conditions (including the actual speed capabilities ,load capabilities and the relevant inflation pressure ) for vehicle characteristics will be agreed between the vehicle and tyre manufactuers when using ZR marked tyres with a service description within brackets ,for example “(95Y)”

AII use of performance characteristics in this catalogue are displayed as a guide only, to allow comparison with other products of the same category .their purpose is to help select the most appropriate tire.No guarantee of performance can be inferred from these characteristics.

All Toyo brand tires ars subject to continuous development . While every effort is made to describe goods and services accurately in this publication, no warranty is given as to accuracy and no responsibility will be accepted for any error or omission. Toyo Tires reserves the right to amend the specification of tires without notice.