SuperNats XXII


SKUSA Winter Series


2018 Pro Tour


PKC California


PKC Texas


Can-Am PKC


Next ProKart Challenge Event

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
Google Maps

California ProKart Challenge

Race Numbers and Panels
Starting with 2018, SKUSA is mandating the use of "CIK Style" numbers for all events we directly promote. This includes the Winter Series, Pro Tour, ProKart Challenge and SuperNationals. The reasons for this vary, but mostly because of the difficultly in reading your numbers on track and in video. This was caused equally by our color combinations and the 'freelance' nature of some of your custom number panels.

The rules below describe the new standard for number panels. Emphasis in bold. (Revised 12/30/2017) Panel Colors: Effective 01/01/18, Numbers shall be black on a yellow background, at least 5" tall and have a 0.750" wide stroke represented with an Arial-type font. No shaded or outlined numbers are allowed. The competition number shall be bordered by a yellow background of 0.375" minimum. They must be in place prior to any official session, on both front and rear panels, as well as on both sides towards the rear of the bodywork. The driver is responsible for ensuring that the required numbers are clearly visible at all times to timekeepers and officials.

A popular example for individual numbers are shown above.  If your kart's factory decals provide yellow panels, then basic die-cut vinyl numbers are very cost effective.

Number Ranges Per Class

The number ranges assigned to each class are listed below.  Single digit numbers are still reserved for class champions.  

IAME Classes Shifter Classes
Micro Swift - 10-99
Mini Swift - 100-299 (200-299 reserved for overflow)
X30 Junior - 700-799
X30 Senior - 300-499 (400-499 reserved for overflow)
X30 Master - 500-599
X30 Super Master - 600-699 (PKC Local Option)
S1 - 100-199
S2 - 200-299
S3 - 300-399
S4 - 400-499
S5 - 500-599
S4SM - 600-699
KZ (SuperNats) - 4-99

See the event pages for the number range of any local option classes.

National and Regional Class Champions

Pro Tour champions are required to run their National numbers at SKUSA events.  In the year they are earned, the top three points finishers in each class will be awarded their single digit National numbers at the Pro Tour Championship Ceremony in Vegas, right before the SuperNationals.  They will first campaign these numbers starting with the SuperNats and then the following year in the Pro Tour and any SKUSA regional races they participate in.  These will still be yellow numbers on a black background.

Regional class champions (1st, 2nd, and 3rd) have the option of running their earned numbers only in the series in which they are won.  They will be black numbers on a yellow background.  We will no longer offer the regional champ 'moving up' number plates.

What about my reserved number?

In moving to the new system described above we've now come to a crossroads with regard to reserved numbers. We simply don't have enough numbers in each pool to reserve a number for every driver across all series. We are now no longer reserving or maintaining numbers with your membership but we understand the desire and will evaluate options for the 2019 season based on our experiences this season and customer feedback.

How do I choose my number?

When you sign up for your first race in any of our series, you will choose your number from available numbers in that class's pool. That will then be your reserved number for the rest of the year, in that series. Since you are picking a number for each series, it's possible you will end up with different numbers in different series. Numbers are always 'first come, first serve' and we will not honor requests to 'hold' a number for you.

Individual Numbers vs Custom Number Panels

Because of the possibility of you having a different number for PKC and the Pro Tour, for example; we don't recommend you purchase pre-printed number panels. We highly suggest the individual number decals that many of your favorite decal printers are now making. We will have a small supply on site but we recommend you source them from your favorite shop or printer.