SuperNats XXV

49DAYS

2023 Winter Series

107DAYS

2023 Pro Tour

184DAYS

SKUSA Mexico

9DAYS

PKC California

3DAYS

2023 TSRS

177DAYS

Next ProKart Challenge Event


PRE-ENTRY OPEN NOW
Will close Sept 27, 11:59 PM

FRIDAY OPEN PRACTICE
Sept 30, 10am - 5pm (by CalSpeed)

Round 6 - Calspeed Karting October 1-2, 2022
CALSPEED KARTING CENTER
9300 Cherry Avenue
Fontana, CA 92335
(951) 506-9363
calspeedkarting.com
Google Maps

California ProKart Challenge

2022 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 modern kart package.

Notes

  • Push back bumper will not be required for any classes of the 2022 Pro Kart Challenge
  • (1) Set of 2022 PKC Stamped Evinco Race Tires per round allowed, but not required.
  • Aspen Sport 98 Unleaded Spec Fuel / Elf HTX 909 Spec Oil

IAME SWIFT CLASSES

Micro Swift
sponsored by P1 Racing Engines
Engine: IAME Mini Swift 60 + 16mm factory header
Age: 7-10
Weight: 220 lbs
Tires: Evinco Blue 'SK-H' Spec from SKUSA
Additional Equipment: Neck brace & SFI-approved chestprotector required
Kart # 10-99
Mini Swift
sponsored by Empire Karts
Engine: IAME Mini Swift 60
Age: 9-13
Weight: 235 lbs
Tires: Evinco Blue 'SK-H' Spec from SKUSA
Additional Equipment: Neck brace required; SFI-approved chest protector required for drivers 12 & under
Kart # 100-199
 

IAME KA100 Classes

KA100 Senior
sponsored by HRT Driver Development
Engine: IAME KA100
Age: 14+
Weight: 345 lbs
Tires: Evinco Blue 'SK-H' Spec from SKUSA (7.10 Rear)
Kart # 900-999
KA100 Master
sponsored by Mike Manning Karting
Engine: IAME KA100
Age: 30+
Weight: 390 lbs
Tires: Evinco Blue 'SK-H' Spec from SKUSA (7.10 Rear)
Kart # 200-299
KA100 Junior
sponsored by Nash Motorsportz
Engine: IAME KA100 + 22mm factory header
Age: 11-15
Weight: 310 lbs
Tires: Evinco Blue 'SK-H' Spec from SKUSA (7.10 Rear)
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: 355 lbs
Tires: Evinco Red 'SK-M' Spec from SKUSA
Kart # 300-399
X30 Master
sponsored by Leading Edge
Engine: IAME X30
Age: 30+
Weight: 385 lbs
Tires: Evinco Red 'SK-M' Spec from SKUSA
Kart # 500-599
X30 Junior
sponsored by Doran Motorsports Group
Engine: IAME X30 + 22.7mm factory header
Age: 12-15 (11 with waiver)
Weight: 315 lbs
Tires: Evinco Blue 'SK-H' Spec from SKUSA
Additional Equipment: Neck brace required; SFI-approved chest protector required for drivers 12 & under
Kart # 700-799
 

SSE/KZ CLASSES

Pro Shifter
sponsored by Factory Karts
Engine/Weight: IAME SSE 175cc // 390
KZ // 390 lbs
Age: 15+
Tires: Evinco Red 'SK-M' Spec from SKUSA
Kart # 200-299
Master Shifter
Engine/Weight: IAME SSE 175cc // 405 lbs
KZ // 405 lbs
Age: 30+
Tires: Evinco Red 'SK-M' Spec from SKUSA
Kart # 600-699
 

LOCAL OPTIONS CLASSES

Shifter S125
Appropriate for Novice and Exp. drivers (S1/S2/S3)
Engine: Spec Honda
Age: 15+
Weight: 395 lbs
Tires: Evinco Red 'SK-M' Spec from SKUSA
Kart # 100-199
Shifter M125
Appropriate for Novice and Exp. drivers (S4/S4SM)
Engine: Spec Honda
Age: 30+
Weight: 405 lbs
Tires: Evinco Red 'SK-M' Spec from SKUSA
Kart # 400-499
S5 - Junior Stock Moto
Engine: Spec Honda
Age: 12-15
Weight: 340 lbs
Tires: Evinco Red 'SK-M' Spec from SKUSA
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.