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
IAME X30 CLASSES
X30 Senior
Sponsored by Phil Giebler Racing |
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Engine: |
IAME X30 |
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Age: |
15+ |
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Weight: |
365lbs |
|
Tires: |
Evinco Red 'M' spec tires from SKUSA |
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Fuel: |
VP C12 |
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Oil: |
Motul 2T Grand Prix (8oz per/gal) |
X30 Master
Sponsored by Rolison Performance Group/RPG |
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Engine: |
IAME X30 |
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Age: |
30+ |
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Weight: |
395lbs |
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Tires: |
Evinco Red 'M' spec tires from SKUSA |
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Fuel: |
VP C12 |
|
Oil: |
Motul 2T Grand Prix (8oz per/gal) |
X30 Junior
Sponsored by Nash Motorsportz |
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Engine: |
IAME X30 + 26mm factory header |
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Age: |
12-15 |
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Weight: |
320lbs |
|
Tires: |
Evinco Red 'M' spec tires from SKUSA |
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Fuel: |
VP C12 |
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Oil: |
Motul 2T Grand Prix (8oz per/gal) |
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Additional Equipment: |
Neck brace required; SFI-approved chest protector required for drivers 12 & under |
X30 SUPER Master (Local Option)
Sponsored by Empire Karts |
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Engine: |
IAME X30 |
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Age: |
45+ |
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Weight: |
405lbs |
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Tires: |
Evinco Red 'M' spec tires from SKUSA |
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Fuel: |
VP C12 |
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Oil: |
Motul 2T Grand Prix (8oz per/gal) |
IAME SWIFT CLASSES
Micro Swift
Sponsored by PKC Kart Supplies |
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Engine: |
IAME Mini Swift 60 + 16mm factory header |
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Age: |
7-10 (See Class Clarification Info) |
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Weight: |
225lbs |
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Tires: |
Evinco Blue "H" tires from SKUSA |
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Fuel: |
VP C12 |
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Oil: |
Motul 2T Grand Prix (8oz per/gal) |
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Additional Equipment: |
Neck brace & SFI-approved chestprotector required |
Mini Swift
Sponsored by Ryan Perry Motorsport |
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Engine: |
IAME Mini Swift 60 |
|
Age: |
9-13 |
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Weight: |
245lbs |
|
Tires: |
Evinco Blue "H" spec tires from SKUSA |
|
Fuel: |
VP C12 |
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Oil: |
Motul 2T Grand Prix (8oz per/gal) |
|
Additional Equipment: |
Neck brace required; SFI-approved chest protector required for drivers 12 & under |
SPEC HONDA CLASSES
We reserve the right to run some of these classes together, but scored separate.
S1 - Pro Stock Moto
Sponsored by Mad Old Nut |
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Engine: |
Spec Honda |
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Age: |
15+ |
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Weight: |
385lbs |
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Tires: |
Evinco Red 'M' spec tires from SKUSA |
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Fuel: |
VP C12 |
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Oil: |
Motul 2T Grand Prix |
S2 - Semi-Pro Stock Moto
Sponsored by Swiss-Micron |
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Engine: |
Spec Honda |
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Age: |
15+ |
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Weight: |
385lbs |
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Tires: |
Evinco Red 'M' spec tires from SKUSA |
|
Fuel: |
VP C12 |
|
Oil: |
Motul 2T Grand Prix |
S3 - Novice Stock Moto (Local Option)
Sponsored by Ace High Designs |
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Engine: |
Spec Honda |
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Age: |
15+ |
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Weight: |
395lbs |
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Tires: |
Evinco Red 'M' spec tires from SKUSA |
|
Fuel: |
VP C12 |
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Oil: |
Motul 2T Grand Prix |
S4 - Master Stock Moto
Sponsored by Doran Motorsports Group |
|
Engine: |
Spec Honda |
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Age: |
30+ |
|
Weight: |
405lbs |
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Tires: |
Evinco Red 'M' spec tires from SKUSA |
|
Fuel: |
VP C12 |
|
Oil: |
Motul 2T Grand Prix |
S4 SM - Super Master Stock Moto
Sponsored by Musgrave Racing Company/MRC |
|
Engine: |
Spec Honda |
|
Age: |
45+ |
|
Weight: |
415lbs |
|
Tires: |
Evinco Red 'M' spec tires from SKUSA |
|
Fuel: |
VP C12 |
|
Oil: |
Motul 2T Grand Prix |
S5 - Junior Stock Moto (Local Option)
Sponsored by Mike Manning Karting/MMK |
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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 |
IAME KA100 ClasSes
(2018 Streets of Lancaster only)
|
KA100 Junior |
|
Engine: |
IAME KA100 + 22mm factory header |
|
Age: |
12-15 |
|
Weight: |
320lbs |
|
Tires: |
Evinco Blue 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: |
15+ |
|
Weight: |
360lbs |
|
Tires: |
Evinco Blue spec tires from SKUSA
7.10 Rear |
|
Fuel: |
VP C12 |
|
Oil: |
Motul 2T Grand Prix (8oz per/gal) |
|
Kart # |
900-999 |
|
KA100 Master |
|
Engine: |
IAME KA100 |
|
Age: |
30+ |
|
Weight: |
380lbs |
|
Tires: |
Evinco Blue spec tires from SKUSA
7.10 Rear |
|
Fuel: |
VP C12 |
|
Oil: |
Motul 2T Grand Prix (8oz per/gal) |
|
Kart # |
200-299 |
SKUSA reserves the right to make additional modifications to our class rules as experience dictates.
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Regional 
