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 2019 Pro Kart Challenge.
IAME SWIFT CLASSES
|
Micro Swift |
|
Engine: |
IAME Mini Swift 60 + 16mm factory header |
|
Age: |
7-10 (See Class Clarification Info) |
|
Weight: |
225lbs |
|
Tires: |
Evinco Blue "H" spec tires from SKUSA |
|
Fuel: |
VP C12 |
|
Oil: |
Motul 2T Grand Prix (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: |
245lbs |
|
Tires: |
Evinco Blue "H" spec tires from SKUSA |
|
Fuel: |
VP C12 |
|
Oil: |
Motul 2T Grand Prix (8oz per/gal) |
|
Additional Equipment: |
Neck brace required; SFI-approved chest protector required for drivers 12 & under |
|
Kart # |
100-199 |
IAME KA100 Classes
|
KA100 Junior |
|
Engine: |
IAME KA100 + 22mm factory header |
|
Age: |
11-15 |
|
Weight: |
320lbs |
|
Tires: |
Evinco Blue "H" spec tires from SKUSA
7.10 Rear |
|
Fuel: |
VP C12 |
|
Oil: |
Motul 2T Grand Prix (8oz per/gal) |
|
Additional Equipment: |
Neck brace required; SFI-approved chest protector required for drivers 12 & under |
|
Kart # |
800-899 |
|
KA100 Senior |
|
Engine: |
IAME KA100 |
|
Age: |
14+ |
|
Weight: |
360lbs |
|
Tires: |
Evinco Blue "H" spec tires from SKUSA
7.10 Rear |
|
Fuel: |
VP C12 |
|
Oil: |
Motul 2T Grand Prix (8oz per/gal) |
|
Kart # |
900-999 |
IAME X30 CLASSES
|
X30 Senior |
|
Engine: |
IAME X30 |
|
Age: |
15+ (14 with waiver) |
|
Weight: |
365lbs |
|
Tires: |
Evinco Red 'M' spec tires from SKUSA |
|
Fuel: |
VP C12 |
|
Oil: |
Motul 2T Grand Prix (8oz per/gal) |
|
Kart # |
300-399 |
|
X30 Master |
|
Engine: |
IAME X30 |
|
Age: |
30+ |
|
Weight: |
395lbs |
|
Tires: |
Evinco Red 'M' spec tires from SKUSA |
|
Fuel: |
VP C12 |
|
Oil: |
Motul 2T Grand Prix (8oz per/gal) |
|
Kart # |
500-599 |
|
X30 Junior |
|
Engine: |
IAME X30 + 26mm factory header |
|
Age: |
12-15 (11 with waiver) |
|
Weight: |
320lbs |
|
Tires: |
Evinco Blue "H" spec tires from SKUSA |
|
Fuel: |
VP C12 |
|
Oil: |
Motul 2T Grand Prix (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: |
405lbs |
|
Tires: |
Evinco Red 'M' spec tires from SKUSA |
|
Fuel: |
VP C12 |
|
Oil: |
Motul 2T Grand Prix (8oz per/gal) |
|
Kart # |
600-699 |
IAME SKUSA SHIFTER ENGINE (SSE) CLASSES
|
Pro Shifter |
|
Engine: |
IAME SSE 175cc |
|
Age: |
15+ |
|
Weight: |
400lbs* |
|
Tires: |
Evinco Red 'M' spec tires from SKUSA |
|
Fuel: |
VP C12 |
|
Oil: |
Motul 2T Grand Prix (8oz per/gal) |
|
Kart # |
100-199 |
|
Pro Shifter 2 (Semi-Pro) |
|
Engine: |
IAME SSE 175cc |
|
Age: |
15+ |
|
Weight: |
400lbs* |
|
Tires: |
Evinco Red 'M' spec tires from SKUSA |
|
Fuel: |
VP C12 |
|
Oil: |
Motul 2T Grand Prix (8oz per/gal) |
|
Kart # |
200-299 |
|
G1 - Gladiator |
|
Engine: |
IAME SSE 175cc |
|
Age: |
30+ |
|
Weight: |
415lbs* |
|
Tires: |
Evinco Red 'M' spec tires from SKUSA |
|
Fuel: |
VP C12 |
|
Oil: |
Motul 2T Grand Prix (8oz per/gal) |
|
Kart # |
700-799 |
* weights still being evaluated.
SPEC HONDA CLASSES
|
S3 - Novice Stock Moto (Local Option) |
|
Engine: |
Spec Honda |
|
Age: |
15+ |
|
Weight: |
395lbs |
|
Tires: |
Evinco Red 'M' spec tires from SKUSA |
|
Fuel: |
VP C12 |
|
Oil: |
Motul 2T Grand Prix |
|
Kart # |
300-399 |
|
S4 - Master Stock Moto |
|
Engine: |
Spec Honda |
|
Age: |
30+ |
|
Weight: |
405lbs |
|
Tires: |
Evinco Red 'M' spec tires from SKUSA |
|
Fuel: |
VP C12 |
|
Oil: |
Motul 2T Grand Prix |
|
Kart # |
400-499 |
|
S5 - Junior Stock Moto (Local Option) |
|
Engine: |
Spec Honda |
|
Age: |
12-15 |
|
Weight: |
340lbs |
|
Tires: |
Evinco Red 'M' spec tires from SKUSA |
|
Fuel: |
VP C12 |
|
Oil: |
Motul 2T Grand Prix |
|
Additional Equipment: |
Neck brace required; SFI-approved chest protector required for drivers 12 & under |
|
Kart # |
500-599 |
|
S4 SM - Super Master Stock Moto |
|
Engine: |
Spec Honda |
|
Age: |
45+ |
|
Weight: |
415lbs |
|
Tires: |
Evinco Red 'M' spec tires from SKUSA |
|
Fuel: |
VP C12 |
|
Oil: |
Motul 2T Grand Prix |
|
Kart # |
600-699 |
We reserve the right to make additional modifications to our rules as experience dictates.
|
Regional 
