SANTA ANA, CA. – (Jan. 22, 2018) – Yokohama Tire’s off-road racing program continues to expand. The tire maker announced today that its GEOLANDAR M/T G003™ (size 33X12.50R15) is the spec tire of the 2018 TrophyLite R4 Series. First race of the season is the Best in the Desert (BITD) Parker 425, Feb. 1-4 in Parker, AZ.