10/28/25 - For the Chill Challenge we have added two new race classes:

LO-206 Jr 1 Cadet

World Formula Sr.

Check them out here.

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10/27/25 - Starting at Chill Challenge and for the 2026 Tri-C season Vega will be the new spec tire.

 

 

 

 

-Four Stroke classes will use the Vega VAH RED tire

-Two stroke classes will use the Vega XH4 GREEN tire

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10/1/25 - Final Championship Points have been posted.

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​​7/2/25 - Kid Kart Tillotson 105R clutch stall and idle rules have been updated.​

 

6/4/25 - Kid Kart Tillotson 105R clutch stall rules have been updated.

 

6/4/25 - Transponders must now be mounted on the back of the seat in all classes starting with the Round 5 race.​​

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3/18/25 - IAME KA and Swift technical rules supplemental has been re-updated.

 

2/18/25 - The IAME 175 SS shifter engine is no longer allowed at Tri-C Karters events due to WKA insurance coverage restrictions.

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2/7/25 - 

We are excited to announce in collaboration with SKUSA, Tri-C Karters will spec Sunoco Supreme 112 race fuel and Sunoco regular 91 pump fuel (4 stroke classes only) at the 2025 K1 Circuit races. Sunoco will be on site for all 2025 K1 Circuit race weekends to pump fuel. We believe the benefits from this agreement with Sunoco will provide a better overall race weekend experience for competitors.

Benefits:

 

- Purchase by gallon at track on the race weekend
- Lower cost per gallon
- No metal pails to dispose of
- Same high quality fuel as used by SKUSA, ROK Cup USA and Challenge of the Americas