Sec. 489(6). Speed limit for motor trucks, regulated
according to manufacturer's rated capacity and tire
equipment.
The speed limit for motor trucks shall be based upon the
manufacturer's rated capacity and tire equipment, and shall be
as follows:
(a) Motor trucks of rated capacity up to but not exceeding
one and one-half tons, and equipped with pneumatic tires, may
operate at the speed limits imposed by subsection three of this
section.
(b) Motor trucks of rated capacity not exceeding one and
one-half tons, but not equipped with pneumatic tires, and motor
trucks of rated capacity exceeding one and one-half tons, but
not exceeding three and one-half tons, may operate at a speed
not greater than two-thirds of the limits imposed in subsection
three of this section.
(c) Motor trucks of rated capacity exceeding three and one-half
tons may be operated at a speed not greater than one-half
the limits imposed by subsection three of this section.
