Patent ID: 9045009
Filing Date: 2015-06-02
Classification: B60C

Abstract:
1. A set of pneumatic tires for a vehicle, comprising: a pair of tires for drive wheels and a pair of tires for non-drive wheels; wherein dimensions, shaping and contour as well as tread pattern of the tires for the drive wheel are identical or substantially identical with those for the non-drive wheels; and wear resistance of the tires for the non-drive wheels is lower than that for the drive wheels due to discrepancy in rubber compositions for forming tire treads between the tires for drive and non-drive wheels; and wherein the wear resistance is expressed as a mileage per wear of 1 mm in depth direction of grooves on tire tread, as determined by a tire drum testing of the pneumatic tire or by an on-road testing of the tire as mounted on a same position of the vehicle; and when the wear resistance of the tires for drive wheels is taken as 100, the wear resistance of the tires for non-drive wheels is not more than 98 and is no less than 80.