KART Class Rules

TLDR: No home-made Karts allowed. Karts used in local racing series are allowed and must follow all the same safety rules. 

Kart Requirements:

  • Frame and axle: Shall be constructed of a carbon steel alloy. Movable suspensions are prohibited. Mechanisms that allow the rear wheels to rotate at different speeds are prohibited. Frame-mounted jackshafts and/or axle clutches are prohibited.

  • Engine: A kart shall have no more than one (1) engine. Must be equipped with a positive acting throttle return spring

  • Fuel: Gasoline is the only allowed fuel. May be mixed with oil only. Performance additives are not allowed (such as, but not limited to, oxygen and/or nitrogen).

  • Chain guard: Required on all chain-driven karts.

  • Overflow: Overflow lines for carburetor/radiator/fuel tank, if present, must terminate in an overflow bottle(s).

  • Pedal extensions: Must be positively secured in a manner that prevents movement out of their intended position, possibly interfering with pedal operation. Examples such as a through-bolt, machined flatten surface with a setscrew, or brackets are acceptable. Cylindrical (round) pedal extensions (i.e., grips) are exempt.

  • Seating: Unsecured seat pads or inserts are not allowed. Seat belts or other devices restraining the driver to the kart are not allowed.

  • Brakes: A disc-type brake that operates on the rear axle, providing braking to both rear wheels, is required. A redundant brake pedal to-master cylinder linkage (safety cable) is required.

  • Bodywork: a. A nose cone and driver fairing are required. b. Left & right sidepods, confined to the area between the front & rear. c. Floor trays must be confined within the frame rails and must not extend aft of the lower front seat mounting points. d. Other aerodynamic devices, including wings or vertical sealing devices, are not allowed. e. Metal bodywork construction is not allowed; metal floor tray construction is allowed.

  • Fasteners required to be secured: The following fasteners must be secured using a locking nut, safety wire/cotter pin through the bolt end, machined-groove & clip, or other positive locking mechanism: • Tie rod end bolts • Kingpin bolts • Spindle nuts attaching front wheel • Steering wheel to hub bolts • Steering hub to shaft bolt • Lower steering shaft uniball • Throttle pedal pivot to chassis • Brake pedal pivot to chassis • Master cylinder to chassis bolts • Brake caliper mounting bolts (if applicable) • Brake pad retaining bolts (if applicable) • Brake rotor to hub (if applicable; no nylon lock nuts)

  • Ballast weights: a. Must be affixed to the frame, floor tray, seat. b. Must be affixed to prevent movement during competition runs. c. Weights affixed to the kart must meet all of the following criteria: 1. Maximum weight per bolt used = 10 lb. 2. Minimum 5/16” (8 mm) SAE Grade 5 (Metric 8.8) mounting bolt. 3. Minimum 1-3/16” (30 mm) diameter metal washer under the bolt head. 4. A single locking nut and safety wire passing through the bolt end or double locking nuts. 

 Driver Safety:

  • Helmet: Full face Snell 2010 or newer rated M, SA, or K required

  • Neck Brace: An unaltered, collar-type neck brace designed for motor sports use is required. A kart-specific neck brace is recommended.

  • Suit: An abrasion-resistant jacket (leather, vinyl, nylon karting jack) and full-length pants are minimally required. A karting-specific suit is recommended.

  • Hand and foot protection: Shoes, socks, and abrasion-resistant gloves are required.

  • Seating position: The driver must be able to reach and fully operate all controls.