Tillotson T4 is a one-make, four-stroke kart racing series designed to provide affordable, competitive motorsport for drivers of all ages and experience levels. Built around the reliable Tillotson 225RS engine and a controlled chassis package, every competitor races with the same core equipment, placing the emphasis on driver skill, racecraft and consistency rather than expensive modifications.
Created to bridge the gap between rental karting and traditional owner-driver championships, the Tillotson T4 series offers an accessible route into competitive kart racing without the high running costs often associated with two-stroke classes. With tightly controlled regulations and sealed engines, maintenance requirements are reduced, helping drivers and teams spend more time racing and less time in the workshop.
The Tillotson T4 championship has grown rapidly across the UK and internationally, attracting beginners, experienced racers and families looking for close, fair competition. Multiple age categories are available, from Bambino and Junior classes through to Senior, making it an ideal championship for drivers progressing through the sport.
Whether you're buying your first race kart, moving on from indoor karting, or looking for a cost-effective owner-driver championship, Tillotson T4 delivers exciting wheel-to-wheel racing, excellent reliability and a welcoming paddock environment. At RPM Racing Engines, you'll find complete Tillotson T4 karts, genuine parts, technical support and expert advice to help you get on track with confidence.
