A. Steering Components

a. Only one power steering pump allowed. Electronic steering and/or electronic steering components will not be permitted.

B. Wheels

a. Only aluminum wheels will be permitted for competition.
b. The wheels must be mounted to the hubs utilizing lug nuts. “Knock off” and/or single type wheel mounting systems will not be permitted.
c. The maximum wheel width that will be permitted is 14”-inches.
d. The combined weight of the wheel, wheel hardware, wheel disc and fasteners, and tire must not exceed 40 pounds*.  *The maximum combined weight in this rule is based upon current tire rules and may need to be adjusted in the event of an alternate tire.
e. The maximum front track width will be 90”-inches and the maximum rear track width will be 88”-inches, measured from the outside edge of the tire to the outside edge of the tire.
f. Only approved wheel discs will be permitted.  Approved wheel discs are wheel discs that are fastened to the wheel using a minimum of three (3), 1/4 or 5/16-inch diameter magnetic steel hex head bolts.  The use of wheel discs with any other type of fastener will not be permitted.
g. Only aluminum wheel spacers will be permitted.
h. Wheel/Air Bleeders are not allowed anywhere on the car.

C. Tires

a. For the 2021 World of Outlaws Late Model Series racing season, an open tire rule is in effect, provided the tires meet the 2021 World of Outlaws Late Model Series Tire Specifications.
b. The maximum size for any tire in competition is 11”-inches x 29”-inches x 15”-inches, unless otherwise specified and made known to all competitors.
c. The maximum outside circumference of the tire will be 93”-inches, unless otherwise specified and made known to all competitors.
d. The maximum width of the tires measured from the outside edge(s) of the sidewalls across the face of the tire will be 16 ¾”-inches. There will be a tire hoop used for inspection and the tire must pass through the tire hoop freely, without any manipulation or outside contact.
e. The tire rule for any event may be amended from time to time and will be made known to all competitors.
f. Tires changes will not be permitted once a car has been presented to the starting grid/lineup area for the feature race.   Any cars making a tire change will forfeit their assigned starting position for that particular race and start from the rear of the field.
g. Chemical alterations, vulcanizing, tire softening, defacing and/or altering the face of the tire lettering and/or tire stamping will not be permitted. Chemicals or tire softening is not permitted at any time.  Tires may be inspected at any time. Any violation with any tire presented for competition may result in immediate disqualification from the events and/or other penalties including but not limited to; loss of money, fine, loss of points and/or suspension.

D. DIRTcar Weekly Racing & Special Event Tire Rules

a. Only the Hoosier LM20, LM30S and LM40 tires will be permitted for competition. The weekly sanctioned track has the option of all 20s; all 30s; or all 40s. There is a right rear option of 20/30/40 (track may limit option to one, two or all three). Siping and grooving is allowed. Events at Eldora Speedway and others as announced prohibit grooving and siping on any tire. Refer to specific event bulletin for details.
b. Only approved tires will be permitted for use in competition.
c. The maximum size for any tire in competition is 11”-inches x 29”-inches x 15”-inches, unless otherwise specified and made known to all competitors.
d. The maximum outside circumference of the tire will be 93”-inches, unless otherwise specified and made known to all competitors.
e. The maximum width of the tires measured from the outside edge(s) of the sidewalls across the face of the tire will be 16 ¾”-inches. There will be a tire hoop used for inspection and the tire must pass through the tire hoop freely, without any manipulation or outside contact.
f. The tire rule for any event may be amended from time to time and will be made known to all competitors.
g. Tires changes will not be permitted once a car has been presented to the starting grid/lineup area for any race.  Any cars making a tire change will forfeit their assigned starting position for that particular race and start from the rear of the field.
h. Chemical alterations, vulcanizing, tire softening, defacing and/or altering the face of the tire lettering and/or tire stamping will not be permitted. Chemicals or tire softening is not permitted at any time.  Tires may be inspected at any time. Any violation with any tire presented for competition may result in immediate disqualification from the events and/or other penalties including but not limited to; loss of money, fine, loss of points and/or suspension.

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