SDCL § 32-22-27: Solid or cushion rubber tires--Maximum weight per inch width of tire--Violation as misdemeanor.

No vehicle equipped with solid or cushion rubber tires may be operated upon the highways of this state if the weight of such vehicle or vehicles and load resting upon the surface of the highway exceeds four hundred pounds upon any inch width of such solid or cushion rubber tires to be measured between the flanges of the rim. A violation of this section is a Class 2 misdemeanor.