Prices of light highway truck tires jumped 4.3 percent in May from a year ago, according to the Labor Department's Producer Price Index.
Radial truck tires increased 2.7 percent from May 2001 and 0.8 percent over the previous three months. Truck and bus tire prices rose by 2.8 percent from 2001 and 0.9 percent since February.
Non-radial truck tire prices saw a 2.4-percent hike from a year ago and a 1.2-percent rise from February. However, prices dropped 0.1 percent from April.
In the one-month comparison, tire prices in nearly all segments remained unchanged. The exceptions were tread rubber, tire sundries and repair materials prices, all of which dipped 0.1 percent.
Prices for all-season passenger tires were up 3.6 percent from last year and 0.5 percent from February. Radial passenger tire prices followed this trend, increasing 2.8 percent from a year ago.