(A) Any machinery, utensils or implements used solely for agriculture, farming or manufacturing purposes may be operated on the highways in the city under present equipment except as is provided in division (B) below.
(B) No tractor, traction engine, hauling engine or other similar power vehicle having any projections on the face of the tires or rims of the wheels in contact with the pavement shall be operated on any highway in the city, the top surface of which is either composed of or treated with bituminous materials or concrete except that the driving wheels may be fitted with flat lugs extending diagonally across the entire width of the tire or rim. Those lugs shall be not less than one inch in width at the bearing surface in contact with the pavement, but those lugs shall be so spaced that not less than two lugs on each driving wheel shall be in contact with the highway surface at all times. The front or non-driving wheels may be fitted with flat steering rings, if those rings are at least two inches in width and not more than one and one-half inches in height, but there shall be no bolt head, rivet heads or other projections beyond the face of the tire or rim. The narrow angle iron lugs used for plowing or on soft ground shall not be permitted, nor shall any tractor or other vehicle or other vehicles of the faces of the shoes or treads of the track in contact with the roadway be permitted unless fitted with flat lugs, in a way that will prevent any injury to the highway by wither the narrow angle lugs or the projections on any tractor or other vehicle named in this section.
(KRS 189.190 (3) and (4)) ('88 Code, § 71.28) Penalty, see § 71.99