RELATIVE TYRE WEAR.

Putaruru Press, Volume VII, Issue 292, 13 June 1929, Page 7

RELATIVE TYRE WEAR.

WHICH SIDE GOES FIRST ? The fact that tyres on the lefthand side of a car wear out faster in proportion than those on the right-hand side often puzzles motorists (says a tyre expert in the Goodyear News). The popular supposition that this' wear is caused by turning many corners to the left is incorrect. The fact is that the increased wear is actually caused by the pitch of the road, which throws more of the car on the left side than on the right. The crown of the road from kerb to kerb is far more important in determining the sequence in which tyres normally wear out—left rear, right rear, left front, right front—-than is gutter wear and abrasions from grinding off on pavements. The slope of the road causes the left rear tyre to carry more weight than the right rear tyre. Thus the left rear wears the faster of the two. The left frorit will also wear more rapidly than the right front, for the same reason. However, as the right rear wheel receives a driving pull, while the left front does not, it will wear the faster of the two. Under average conditions the left rear tyre wears out first, and the right front last, ,

To secure uniform wear from. a set of tyres change them around about once a month. Particularly is it important to reverse the rear tyres.. After the rear tyres are worn down reverse them with the, front.