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CANADIAN TIRE REFERENCE

Tire Load Index 40

Tire load index 40 corresponds to 140 kg or about 309 lb per tire. See its meaning, adjacent indices and important replacement cautions.

LOAD INDEX40
MAXIMUM MASS140 kg
IMPERIAL309 lb

What tire load index 40 means

Load index 40 corresponds to a reference maximum mass of 140 kilograms (309 pounds) for one tire under the conditions defined by the applicable tire standard. It is not the vehicle's payload rating.

Replacement safety

Use the vehicle manufacturer’s placard and owner documentation. Size, load capacity, pressure, speed capability and axle requirements must all be verified; never select a replacement from this number alone.

Related load indices

Index 39Index 41Complete table

Source and limitations

Reference mass is derived from the load-capacity table in UNECE Regulation No. 30. Operating conditions and other tire standards can affect application. Review the source regulation.