Section 305.30. Tires and rims.  


Latest version.
  • (1)  The tires and rims on every vehicle shall be maintained in proper condition and in conformity with this section and s. 347.45 , Stats.
    (2)  Every tire shall have at least 2/32 inch tread depth in every major tire groove measured at 2 points no less than 15 inches apart.
    (3)  The tires on any vehicle required to have fenders may not protrude more than 2 inches beyond the fender line at the highest point of the tire. The measurement shall be from the original fender line of the vehicle as equipped by the original manufacturer.
    (4)  Weight imposed on the tires or rims may not exceed that weight which is specified by the manufacturer of the tires or rims.
    (5)  No vehicle may have tires of different size or construction on the same axle, or directly across from each other on vehicles without a common axle, except that this subsection does not prohibit the use of mini spare tires temporarily used in accordance with manufacturer's specifications or other spare tires and rims that are temporarily used.
    Example: Mounting a radial tire on the left front side and a bias ply tire on the right front side of an automobile is prohibited.
    (6)  No tire shall be repaired using a method not recommended by the manufacturer and there may not be tread or sidewall cuts or snags in excess of one inch in any direction as measured on the tire, deep enough to expose or damage the body cords, nor may there be any bump, bulge, knot, sidewall separation or failure or partial failure of the tire structure. 
    (7)  No tire may be used that has been stamped or marked in such a manner so as to indicate that such tire is not to be operated on a highway.
    (8)  The rims may not be damaged, dented, bent or otherwise distorted, rusted or corroded.
    (9)  No rim may have loose or missing nuts, lugs or bolts.
History: Cr. Register, February, 1996, No. 482 , eff. 3-1-96; am. (2) and (3), Register, October, 1997, No. 502 , eff. 11-1-97; am. (2) and (3), Register, October, 1997, No. 502 , eff. 11-1-97.