Rules and Classes

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Flat Kart Classes

Jr – Jr Class

Ages: 5-8 yrs. Old

Engine: Preferably using a small CC OHV (Clone/Predator) or comer engine. Kill switch that is easily accessible. Engines must idle. Chain guard required, recommend full length,

Tire/weight: Open

Fuel: 91 Octane Spec Station. 

Body: Full-length rear bumpers and nose strongly recommended (should cover 50% of each tire). Side panels/bars/pods required. No sharp edges.

**Anything slow and safe. Beginner Class. 

Jr. Clone/Predator/KT-100 Can

Ages: 8-15 yrs. old Weight: minimum 300 lb. 

Engine: Any single cylinder OHV Clone/Honda/Tillotson/Predator. Max 212 CC (no Ghost motors). 4-hole KT Can engines allowed. See specific rules for each engine in sections 12 and 13. All OHV 4 stroke engines must run a .550” restrictor. 

Spec Tires: Burris Treads - TX 22 or TX 33 compounds only, max 6” x 10” rims. 

Fuel: 91 Octane Spec Station. No fuel or oil additives allowed. 

Body: Full length rear bumpers and nose strongly recommended (should cover 50% of each tire). Side panels/bars/pods required. 

** LOCAL OPTION – W2W sealed predator with spec ¾” exhaust, stock airbox NOT REQUIRED to run .550’ restrictor if engine is “W2W legal”.  

** Any non-Burris treaded tire is allowed, however driver is not eligible for year-end awards from Burris.  

SR. Clone/Predator OHV  

Ages:  15 yrs. & up
Weight:  375 lbs. 

Engine: Any single cylinder OHV Clone/Honda/Tillotson/Predator. Max 212 CC (no Ghost motors). See specific engines rules in section 21.

Spec Tires: Burris Treads - TX 22 or TX 33 compounds only, max 6” x 10” rims. 

Fuel: 91 Octane Spec Station. No fuel or oil additives allowed.

Body: Full length rear bumpers and nose strongly recommended (should cover 50% of each tire). Side panels/bars/pods required.

** Any non-Burris treaded tire is allowed, however driver is not eligible for year-end awards from Burris.

Small Bore Open 

Ages: 15 yrs. & up. (drivers under age 15 may compete, subject to SCDK official approval).

Engine: Any air cooled, single cylinder, 4 stroke kart engine (no motor bike engines). Max 285cc. No billet blocks or heads (aftermarket crank, rod, piston, flywheel, side cover ok). 3rd bearing support ok. No deck extensions

Weight: weight is based on engine cc’s. 1.55 lbs per 1cc (rounded to nearest lb). Driver must display engine cc w/ allowed weight on kart body or engine for scale/tech. 

Examples: 

196cc = 304lbs

236cc = 366lbs

285cc = 442lbs

Tires: Open (max 6” x 10” rim).
Fuel: Gasoline, racing fuel or methanol only (no nitrous/exotic fuel blends).

Oil: Open

KT-100
Ages:  15 yrs. & up.
Weight: 365 lbs.
Spec Tires: Burris Treads - TX 22 or TX 33 compounds only, max 6” x 10” rims.
 

Fuel: 91 Octane Spec Station. 

Spec Oil: Premix – 8 oz per gallon Burris castor or blend.

Engine: See specific rules in section 20.

Open Class (UAS/RWYB)

Ages:  15 yrs. & up.
Tires: Open (max 6” x 10” rim).
Fuel: Open

Oil: Open 

Engines: per UAS engine displacements and rules.

F200 4 cycle

Ages:15 yrs. & up.

Weight:360 lbs.

Tires: Any treaded kart tire allowed, max 6” x 10” rims.

 Fuel: 91 Octane Spec Station.  

*May be combined with Small Bore Open.

100cc Stock 2 cycle Sprint Combined

Chassis: Sprint/straight-rail chassis only (no LTO/offset chassis).

Tires: Any treaded kart tire allowed, max 6” x 10” rims.

Engines/weight:

· Kt100 SA pipe @ 350lbs 

· KPV/HPV (per IKF/WKA rules)@ 360lbs

· Vortex ROK and IAME KA100 (per SKUSA)@ 380lbs

 Fuel: 91 Octane Spec Station.  

Tag Sprint 

Engine: Any 125cc water cooled TAG motor. Max 125cc. Electric start not required. Carb and pipe are open/non tech. No coolant. Only water and non-glycol wetting agents (e.g. Water Wetter).

Weight: 365 lbs.

Chassis: Sprint/straight rail only (no LTO/offset chassis allowed)

Tires: Any treaded kart tire allowed, max 6” x 10” rims.

 Fuel: 91 Octane Spec Station.  

Caged Classes

250cc Winged Outlaw Kart - 4 Cycle

Age:10 yrs. & up (drivers under age 15 are subject to SCDK and insurance approval).

Weight: Minimum 375 lbs. with driver

Fuel: Gasoline, racing fuel or methanol only (no nitrous/exotic fuel blends)

Engine: Must be max 250cc, single cylinder dirt bike engine, stock bore and stroke from factory

Tires: Any treaded kart tire allowed, max 6” x 10” rims.

Additional rules are listed in section 19.42 below.

 250cc Winged Outlaw Kart – 2 Cycle

Age:10 yrs. & up (drivers under age 15 are subject to SCDK and insurance approval).

Weight: 

250-274cc min 420lbs

275-300cc min 460lbs

Fuel:Gasoline only

Engine: Must be max 300cc, single cylinder, 2 stroke dirt bike engine

Tires: Any treaded kart tire allowed, max 6” x 10” rims.

**SCDK has the right to add/drop/modify classes at any time in order to provide better, consistent racing

** Classes may be added to any event if there are a minimum of 4 karts for the class