The Most Accessible Professional Karting Platform in America
One engine. One chassis. One clear path from beginner to elite racing.
One engine. One chassis. One clear path from beginner to elite racing.
OFFICIAL T4 SERIES USA EVENTS
Follow the action across America @t4seriesusa
T4 Series is a fully spec karting platform designed to eliminate unnecessary costs and complexity, while maximizing driver development and competition.
Same engine. Same chassis. Same opportunity for everyone.
Built to create real drivers and sustainable racing programs.
No engine wars. No hidden costs. No unfair advantages. One engine platform across all categories. One chassis platform built for real racing. Maximum seat time. Maximum development. Maximum fairness. Talent decides. Not budget.
Karting lost its way.
Costs increased. Complexity increased. Opportunities decreased. Too many talented drivers never had a real chance—not because they weren't good enough, but because the system was broken.
T4 was created to fix that.
A platform where drivers can grow, families can plan, and tracks can build sustainable racing programs. A system built on structure, fairness, and real opportunity.
Progression without reset.
From T4 Mini to T4 Senior, drivers use the same engine base and chassis philosophy, allowing them to continuously build their skills.
The result is a driver who is not just fast—but complete.
This creates: Faster development | Deeper understanding | Stronger driver confidence
Built for young drivers learning confidence, discipline, and racecraft fundamentals in a safe and equal environment.
Tillotson 105R 4-Stroke
Mini uses the same TPP225RS engine platform as the higher classes, giving young drivers a true racing experience with equal equipment.
Tillotson TPP225RS 225cc 4-Stroke Engine
High-level spec competition where equal equipment keeps the focus on the driver.
Tillotson TPP225RS 225cc 4-Stroke Engine
Built for drivers who want performance, durability, and affordability in one platform.
Tillotson TPP225RS 225cc 4-Stroke Engine
2026 Official T4 Series USA Supplemental Regulations
Recovered post-race.
Only T4 Euro Exhaust Pipe is permitted.
Noram T4 Stinger or Hilliard Inferno Series.
Only 219 chain and sprockets permitted.
Exclusively with T4 Boot.
Exclusively T4 Maxxis compounds for dry-rain conditions
T4 Series USA is currently active in Florida, Texas, California, Tennessee, and Ohio.
T4 is a complete racing platform designed for track operators and dealers. It provides a structured, scalable, and profitable way to grow karting programs.
T4 is not just a category. It is a long-term business solution for karting.
Get in touch to start racing, partner as a track, or become a dealer.
sales@kartrising.com