– Due to the continued rising costs of raw materials, Yokohama Tire Corp. will increase prices on its Off The Road (OTR) tires by 3 to 5 percent beginning Jan. 1, 2007. “The record escalation of raw material costs, petroleum-related material, and energy costs, as well as transportation costs, have combined to make price increases a necessity,” said Gary Nash, Yokohama director of OTR tire sales. “Yokohama’s improvements in operational efficiency have actually helped offset higher materials costs. In fact, the 3- to 5-percent bump is inline with all our other product lines.”The increase will be on all OTR brands produced by Yokohama. Specific details, including inline adjustments, will be announced at a later date.