2024 Race classes
Spec Fuel: VP MS98L or 87 pump gas. See individual class listings for specified fuel.
Mixing of fuel brands or types is ILLEGAL and will result in a DQ. Any additives, whether they are performance enhancing or not, are ILLEGAL and will result in a DQ (with the exception of manufacturer additives present in pump gas from the pump).
It is advised to purchase pump fuel the day of the race. A test sample of both fuels will be taken that day and used by Post Tech for comparison.
Legal 87 octane pump gas can be purchased at these local stations only
for races at the respective tracks:
Adams Motorsports Park
Arco (AM/PM) Market
2985 Rubidoux Blvd.
Riverside, CA 92509
K1 Circuit
Arco (AM/PM) Market
26050 Menifee Road
Menifee, CA 92585
The K1 Circuit facility has a 95 Db noise limit for all karts. If your kart fails this requirement, then that kart cannot run on track
Kid Kart Honda
Age: 5-7 years (driver must have attained the age of 5 before competing)
Weight: 160 lbs
Tires: Hoosier R60B 4.50/10.0-5 front & Rear
-
Circumference: 32" - 32.50"
-
Tire pressure not to exceeded 20 PSI in post tech inspection.
Wheels: Overall width 130-140mm
Overall Width: Front Maximum 42”; Rear Minimum 39” – Maximum 42”
Rear Bumper: Must protect the rear wheels and come to roughly the middle of the rear tires. May not exceed the outer plane of the rear wheel/tire. (Exception – Bumper may extend beyond rear tires in rain conditions).
Bodywork: Side pods may not exceed maximum overall width of rear axle.
Engine:
-
Honda GX50 16t front driver/ 89t sprocket
-
Carb jet 52 or 55 allowed (exception to HPD rules)
-
Throttle plate may be stamped 130 or 140. Color and material used is non-tech*
-
Float #1-5 allowed*
-
Pushrod length: minimum 2.145"; Maximum 2.774"*
Clutch: Maximum stall speed 3100 RPM*
Fuel: Pump gas only (see Spec fuel at top of page)
Tech Specs: Honda engine must have factory seals intact. See HPD rules & Tri-C supplemental rules
*exception to HPD rules
TaG Micro
Competition Age: 7-10 years
Weight: 225 lbs.
Tires: Hoosier R60B 4.50/10.0-5 front & Rear
Wheels: No width restrictions
Engine:
-
IAME Micro Swift 60cc restricted header as supplied by manufacturer
-
Vortex Micro Rok 60cc restricted header as supplied by manufacturer
Fuel: VP 98L
Oil:
-
Motul Kart Grand Prix
-
Elf HTX 909 SAE 50
Tech Specs: IAME Swift 60cc and Rok Cup USA Vortex Rok 60cc
Supplemental rules: Tri-C supplemental rules
100cc Tag Junior
Competition Age: 12-16 years
Weight: 320 lbs.
Tires: Hoosier R60B 4.50/10.0-5 front,
R60B 7.10/11.0-5 Rear
Engine:
-
IAME KA100 with 22mm IAME factory header
Fuel: VP 98L
Oil:
-
Motul Kart Grand Prix
-
Elf HTX 909 SAE 50
Tech Specs: IAME KA100
Supplemental rules: Tri-C supplemental rules
100cc Tag Master
Competition Age: 30+ years
Weight: 380 lbs.
Tires: Hoosier R60B 4.50/10.0-5 front,
R60B 7.10/11.0-5 Rear
Engine:
-
IAME KA100
-
Vortex Rok VLR 100cc
Fuel: VP 98L
Oil:
-
Motul Kart Grand Prix
-
Elf HTX 909 SAE 50
Tech Specs:
Supplemental rules: Tri-C supplemental rules
Briggs Lo206 Senior
Competition Age: 15+ years
Weight: 350 lbs.
Tires: Hoosier R70 4.50/10.0-5 front,
R70 6.00/11.0-5 Rear
Engine:
-
Briggs & Stratton LO206
-
Carburetor slide - Black (stock)
Clutch:
-
See Briggs & Stratton LO206 2024 Regulations
Fuel: pump gas only (see spec fuel at top of page)
Tech Specs:
tillotson t225 Junior
Competition Age: 11-15 years
Weight: 320 lbs.
Tires: Hoosier R70 4.50/10.0-5 front,
R70 6.00/11.0-5 Rear
Engine:
-
Tillotson TPP-225RS
Clutch:
-
See Tillotson 2024 US regulations
Fuel: pump gas only (see spec fuel at top of page)
Tech Specs:
opEN sHIFTER Senior
Competition Age: 15+ years
Weight:
-
KZ & ICC 395 lbs
-
IAME SSE 175 395 lbs
-
Vortex Rok Shifter 385 lbs.
-
Honda CR125 "Stock Moto" 370 lbs
-
Yamaha FZ125 "Stock Moto" 370 lbs
Tires:
-
Evinco M "Red"
-
Hoosier R55
-
Vega XH4
Engine:
Fuel: VP98L
Oil:
-
Motul Kart Grand Prix
-
Elf HTX 909 SAE 50
TaG Mini
Competition Age: 8-13 years
Weight: 245 lbs.
Tires: Hoosier R60B 4.50/10.0-5 front & Rear
Wheels: No width restrictions
Engine:
-
IAME Mini Swift 60cc
-
Vortex Mini Rok 60cc
Fuel: VP 98L
Oil:
-
Motul Kart Grand Prix
-
Elf HTX 909 SAE 50
Tech Specs: IAME Swift 60cc and Rok Cup USA Vortex Rok 60cc
Supplemental rules: Tri-C supplemental rules
100cc Tag Senior
Competition Age: 15+ years
Weight: 360 lbs.
Tires: Hoosier R60B 4.50/10.0-5 front,
R60B 7.10/11.0-5 Rear
Engine:
-
IAME KA100
-
Vortex Rok VLR 100
Fuel: VP 98L
Oil:
-
Motul Kart Grand Prix
-
Elf HTX 909 SAE 50
Tech Specs:
Supplemental rules: Tri-C supplemental rules
Briggs Lo206 JUnIOr
Competition Age: 11-15 years
Weight: 320 lbs.
Tires: Hoosier R70 4.50/10.0-5 front,
R70 6.00/11.0-5 Rear
Engine:
-
Briggs & Stratton LO206
-
Carburetor slide - Black (stock)
Clutch:
-
See Briggs & Stratton LO206 2024 Regulations
Fuel: pump gas only (see spec fuel at top of page)
Tech Specs:
Briggs Lo206 Master
Competition Age: 35+ years
Weight: 370 lbs.
Tires: Hoosier R70 4.50/10.0-5 front,
R70 6.00/11.0-5 Rear
Engine:
-
Briggs & Stratton LO206
-
Carburetor slide - Black (stock)
Clutch:
-
See Briggs & Stratton LO206 2024 Regulations
Fuel: pump gas only (see spec fuel at top of page)
Tech Specs:
tillotson t225 Senior
Competition Age: 15+ years
Weight: 360 lbs.
Tires: Hoosier R70 4.50/10.0-5 front,
R70 6.00/11.0-5 Rear
Engine:
-
Tillotson TPP-225RS
Clutch:
-
See Tillotson 2024 US regulations
Fuel: pump gas only (see spec fuel at top of page)
Tech Specs:
opEN sHIFTER Master
Competition Age: 32+ years
Weight:
-
KZ & ICC 395 lbs
-
IAME SSE 175 395 lbs
-
Vortex Rok Shifter 385 lbs.
-
Honda CR125 "Stock Moto" 370 lbs
-
Yamaha FZ125 "Stock Moto" 370 lbs
Tires:
-
Evinco M "Red"
-
Hoosier R55
-
Vega XH4
Engine:
Fuel: VP98L
Oil:
-
Motul Kart Grand Prix
-
Elf HTX 909 SAE 50