SuperNats XXVIII

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2026 Winter Series

TBA

2025 Pro Tour

34DAYS

SKUSA Mexico

AHORA!

2025 PKC

6DAYS

2025 TSRS

NOW!

Next SKUSA Pro Tour Event


PRE-ENTRY OPENS FEB 26 at 6PM PDT

ATTN: KA Master/Master Shifter
We need at least 10 entries in each class by March 12 or they may be removed from the schedule for the remainder of the season.

WINTERNATIONALS - Rounds 1&2 March 28-30, 2025
Speedsportz Racing Park
23050 Speed Street
New Caney, TX 77357
(866) 607-7223
speedsportzracingpark.com
Google Maps

Track will run practice Weds/Thurs
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SKUSA Pro Tour

2025 Pro Tour Classes
The 2025 SKUSA Pro Tour will welcome some highly requested new changes to the racing format.  X30 Pro will return to two rounds of racing format and the Pro Shifter class will run Qualitying and two Heats on Saturday and a Pre-Final and Final on Sunday.  More details to follow.

Drivers racing in X30 Pro can also race in KA100 Senior and vice versa.  There are no longer any restrictions in place for 2025 but we will monitoring any effects closely.

PRo CLASSES

  • Push Back Bumpers - Not required for Pro Shifter
  • (2) Sets of Evinco Race Tires for each Event.
Pro Shifter
Engine: KZ 125cc
Age: 15+
Weight: 390 lbs
Tires: Evinco Red 'SK-M2' Spec from SKUSA
Kart # 1-99
Pro X30
Engine: IAME X30
Age: 15+
Weight: 360 lbs
Tires: Evinco Red 'SK-M2' Spec from SKUSA
Kart # 1-99
 

SEMI-PRO CLASSES

  • Push Back Bumpers - Required for all classes except Master Shifter
  • Micro/Mini Swift - (1) Set of Evinco Race Tires Per 2-Round Weekend Allowed
  • All other Semi-Pro Clases - (2) Sets of Evinco Race Tires Per 2-Round Weekend Allowed
  • *KA100 Master and Master Shifter will need a minimum of 10 Pre-Entries by March 12 or they may be removed from the schedule for the remainder of the season.
Micro Swift
Engine: IAME Mini Swift 60 + 16mm factory header
Age: 7-10
Weight: 220 lbs
Tires: Evinco Blue 'SK-H2' Spec from SKUSA
Additional Equipment: Neck brace & SFI-approved chestprotector required
Kart # 200-299
Mini Swift
Engine: IAME Mini Swift 60
Age: 9-13
Weight: 245 lbs
Tires: Evinco Blue 'SK-H2' Spec from SKUSA
Additional Equipment: Neck brace required; SFI-approved chest protector required for drivers 12 & under
Kart # 100-199
 
X30 Junior
Engine: IAME X30 + 22.7mm factory header
Age: 12-15
Weight: 320 lbs
Tires: Evinco Blue 'SK-H2' Spec from SKUSA
Additional Equipment: Neck brace required; SFI-approved chest protector required for drivers 12 & under
Kart # 700-799
KA100 Junior
Engine: IAME KA100 + 22mm factory header
Age: 12-15
Weight: 320 lbs
Tires: Evinco Blue 'SK-H2' Spec from SKUSA
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: 355 lbs
Tires: Evinco Blue 'SK-H2' Spec from SKUSA
Kart # 900-999
KA100 Master*
Engine: IAME KA100
Age: 30+ or 21-29 (200lb driver weight)
Weight: 390 lbs // 400 lbs (21+)
Tires: Evinco Blue 'SK-H2' Spec from SKUSA
Kart # 400-499
 
Master Shifter*
Engine: IAME SSE 175cc / KZ 125cc
Age: 30+
Weight: 405 lbs
Tires: Evinco Red 'SK-M2' Spec from SKUSA
Kart # 600-699
 
We reserve the right to make additional modifications to our rules as experience dictates.
Last Updated on Wednesday, 19 February 2025 15:41