SuperNats XXIV

388DAYS

2021 Winter Series

75DAYS

2021 Pro Tour

152DAYS

PKC California

2021 TBA

Texas Sprint Racing

145DAYS

California ProKart Challenge

2020 ProKart Challenge Classes
We reserve the right to make additional modifications to our rules as experience dictates. The ProKart Challenge offers a broad spectrum of classes that provide a place to race for drivers of all skill levels and racing experience. The impetus of the series is to offer a friendly environment where anyone can race with virtually any kart package.

Notes: (1) Participation is contingent upon SKUSA racing license approval in your chosen class. See MEMBERSHIP page for details. (2) Participation in the local option classes will be closely monitored, and we reserve the right to eliminate any or all of them from the class lineup without sufficient interest. (3) Trophies will be presented at each race to the top 3 finishers in each class, as long as there is a minimum of 5 entries per class.

According to the SKUSA Rulebook, the driver's racing age for purposes of class eligibility is based on the age attained by the last day of the racing year. SKUSA reserves the right to advance, as well as limit advancement of, any competitor found to be outside of the ‘performance envelope’ for the class. See SKUSA rule 15.1 and 15.3

Push back bumper will not be required for any classes of the 2020 Pro Kart Challenge.

ALL MINI, KA100, and X30 JR on now on the NEW HARD COMPOUND TIRES at SKUSA EVENTS. Double check with your series, but only LO-206 classes should remain on the previous compound.

IAME SWIFT CLASSES

Micro Swift
Engine: IAME Mini Swift 60 + 16mm factory header
Age: 7-10 (See Class Clarification Info)
Weight: 225 lbs
Tires: NEW Evinco Blue 'SK-H' spec tires from SKUSA
Fuel: VP MS98
Oil: Elf HTX909 (8oz per/gal)
Additional Equipment: Neck brace & SFI-approved chestprotector required
Kart # 10-99
Mini Swift
Engine: IAME Mini Swift 60
Age: 9-13
Weight: 245 lbs
Tires: NEW Evinco Blue 'SK-H' spec tires from SKUSA
Fuel: VP MS98
Oil: Elf HTX909 (8oz per/gal)
Additional Equipment: Neck brace required; SFI-approved chest protector required for drivers 12 & under
Kart # 100-199
 

IAME KA100 Classes

KA100 Senior
Engine: IAME KA100
Age: 14+
Weight: 360 lbs
Tires: NEW Evinco Blue 'SK-H' spec tires from SKUSA (7.10 Rear)
Fuel: VP MS98
Oil: Elf HTX909 (8oz per/gal)
Kart # 900-999
KA100 Master
Engine: IAME KA100
Age: 30+
Weight: 390 lbs (Under Review)
Tires: NEW Evinco Blue 'SK-H' spec tires from SKUSA (7.10 Rear)
Fuel: VP MS98
Oil: Elf HTX909 (8oz per/gal)
Kart # 200-299
KA100 Junior
Engine: IAME KA100 + 22mm factory header
Age: 11-15
Weight: 320 lbs
Tires: NEW Evinco Blue 'SK-H' spec tires from SKUSA (7.10 Rear)
Fuel: VP MS98
Oil: Elf HTX909 (8oz per/gal)
Additional Equipment: Neck brace required; SFI-approved chest protector required for drivers 12 & under
Kart # 800-899
 

IAME X30 CLASSES

X30 Senior
Engine: IAME X30
Age: 15+ (14 with waiver)
Weight: 365 lbs
Tires: Evinco Red 'M' spec tires from SKUSA
Fuel: VP MS98
Oil: Elf HTX909 (8oz per/gal)
Kart # 300-399
X30 Master
Engine: IAME X30
Age: 30+
Weight: 395 lbs
Tires: Evinco Red 'M' spec tires from SKUSA
Fuel: VP MS98
Oil: Elf HTX909 (8oz per/gal)
Kart # 500-599
X30 Junior
Engine: IAME X30 + 26mm factory header
Age: 12-15 (11 with waiver)
Weight: 320 lbs
Tires: NEW Evinco Blue 'SK-H' spec tires from SKUSA
Fuel: VP MS98
Oil: Elf HTX909 (8oz per/gal)
Additional Equipment: Neck brace required; SFI-approved chest protector required for drivers 12 & under
Kart # 700-799
X30 SUPER Master
Engine: IAME X30
Age: 45+
Weight: 405 lbs
Tires: Evinco Red 'M' spec tires from SKUSA
Fuel: VP MS98
Oil: Elf HTX909 (8oz per/gal)
Kart # 600-699
 

SSE/KZ CLASSES

Pro Shifter
Engine/Weight: IAME SSE 175cc // 395 lbs
KZ // 385 lbs
Age: 15+
Tires: Evinco Red 'M' spec tires from SKUSA
Fuel: VP MS98
Oil: Elf HTX909(8oz per/gal)
Kart # 100-199
Pro Shifter 2 (Semi-Pro)
Engine/Weight: IAME SSE 175cc // 395 lbs
KZ // 385 lbs
Age: 15+
Tires: Evinco Red 'M' spec tires from SKUSA
Fuel: VP MS98
Oil: Elf HTX909 (8oz per/gal)
Kart # 200-299
G1
Engine/Weight: IAME SSE 175cc // 415 lbs
KZ // 405 lbs
Age: 30+
Tires: Evinco Red 'M' spec tires from SKUSA
Fuel: VP MS98
Oil: Elf HTX909 (8oz per/gal)
Kart # 700-799
G2
Engine/Weight: IAME SSE 175cc // 420lbs
KZ // 410 lbs
Age: 45+ (or 30+ with 2 or fewer years racing experience)
Tires: Evinco Red 'M' spec tires from SKUSA
Fuel: VP MS98
Oil: Elf HTX909 (8oz per/gal)
Kart # 400-499
 

LOCAL OPTIONS CLASSES

Shifter Senior
Appropriate for Novice and Exp. drivers (S2/S3)
Engine: Spec Honda
Age: 15+
Weight: 395 lbs
Tires: Evinco Red 'M' spec tires from SKUSA
Fuel: VP MS98
Oil: Elf HTX909
Kart # 300-399
Shifter Master
Appropriate for Novice and Exp. drivers (S4/S4SM)
Engine: Spec Honda
Age: 30+
Weight: 405 lbs
Tires: Evinco Red 'M' spec tires from SKUSA
Fuel: VP MS98
Oil: Elf HTX909
Kart # 400-499
S5 - Junior Stock Moto
Engine: Spec Honda
Age: 12-15
Weight: 340 lbs
Tires: Evinco Red 'M' spec tires from SKUSA
Fuel: VP MS98
Oil: Elf HTX909
Additional Equipment: Neck brace required; SFI-approved chest protector required for drivers 12 & under
Kart # 500-599
 
 
We reserve the right to make additional modifications to our rules as experience dictates.