SuperNats XXII

297DAYS

SKUSA Winter Series

17DAYS

2018 Pro Tour

38DAYS

PKC California

10DAYS

PKC Texas

59DAYS

Can-Am PKC

116DAYS

Next ProKart Challenge Event


RACE ENTRY OPEN
Closes Monday, Jan 29th at 10am

Round 1 - Buttonwillow February 2-3, 2018
Buttonwillow Raceway Park
24551 Lerdo Highway
Buttonwillow, CA 93206
(661) 764-5333
buttonwillowraceway.com
Google Maps

California ProKart Challenge

2018 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

IAME X30 CLASSES

X30 Senior
Sponsored by Phil Giebler Racing
Engine: IAME X30
Age: 15+
Weight: 365lbs
Tires: Evinco Red 'M' spec tires from PKC
Fuel: VP C12
Oil: Motul 2T Grand Prix (8oz per/gal)
X30 Master
Sponsored by Rolison Performance Group/RPG
Engine: IAME X30
Age: 30+
Weight: 395lbs
Tires: Evinco Red 'M' spec tires from PKC
Fuel: VP C12
Oil: Motul 2T Grand Prix (8oz per/gal)
X30 Junior
Sponsored by Nash Motorsportz
Engine: IAME X30 + 26mm factory header
Age: 12-15
Weight: 320lbs
Tires: Evinco Red 'M' spec tires from PKC
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
X30 SUPER Master (Local Option)
Sponsored by Empire Karts
Engine: IAME X30
Age: 45+
Weight: 405lbs
Tires: Evinco Red 'M' spec tires from PKC
Fuel: VP C12
Oil: Motul 2T Grand Prix (8oz per/gal)
 

IAME SWIFT CLASSES

Micro Swift
Sponsored by PKC Kart Supplies
Engine: IAME Mini Swift 60 + 16mm factory header
Age: 7-10 (See Class Clarification Info)
Weight: 225lbs
Tires: MG Red HZi spec tires from SKUSA
Fuel: VP C12
Oil: Motul 2T Grand Prix (8oz per/gal)
Additional Equipment: Neck brace & SFI-approved chestprotector required
Mini Swift
Sponsored by Ryan Perry Motorsport
Engine: IAME Mini Swift 60
Age: 9-13
Weight: 245lbs
Tires: MG Red HZi 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
 

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
Engine: Spec Honda
Age: 15+
Weight: 385lbs
Tires: Evinco Red 'M' spec tires from PKC
Fuel: VP C12
Oil: Motul 2T Grand Prix
S2 - Semi-Pro Stock Moto
Sponsored by Swiss-Micron
Engine: Spec Honda
Age: 15+
Weight: 385lbs
Tires: Evinco Red 'M' spec tires from PKC
Fuel: VP C12
Oil: Motul 2T Grand Prix
S3 - Novice Stock Moto (Local Option)
Sponsored by Ace High Designs
Engine: Spec Honda
Age: 15+
Weight: 395lbs
Tires: Evinco Red 'M' spec tires from PKC
Fuel: VP C12
Oil: Motul 2T Grand Prix
S4 - Master Stock Moto
Sponsored by Doran Motorsports Group
Engine: Spec Honda
Age: 30+
Weight: 405lbs
Tires: Evinco Red 'M' spec tires from PKC
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: 405lbs
Tires: Evinco Red 'M' spec tires from PKC
Fuel: VP C12
Oil: Motul 2T Grand Prix
S5 - Junior Stock Moto (Local Option)
Sponsored by Mike Manning Karting/MMK
Engine: Spec Honda
Age: 12-15
Weight: 340lbs
Tires: Evinco Red 'M' spec tires from PKC
Fuel: VP C12
Oil: Motul 2T Grand Prix
Additional Equipment: Neck brace required; SFI-approved chest protector required for drivers 12 & under

We reserve the right to make additional modifications to our rules as experience dictates.