Our Tillotson T4 Series, which debuted in the 2019 Motorsport Ireland Championship, is designed to introduce new drivers to the higher levels of karting in a cost-effective, easy-to-use manner. It is the ideal setup for individuals who are new to the sport of karting as well as for clubs and local federations who want to expand the appeal of professional-level karting to the weekend racer or motorsport enthusiast. The T4 Package includes everything you need to begin racing:  a European style racing chassis, our high-power, low-maintenance 225cc racing engine with an easy to adjust FM carburetor and a complete set of Maxxis Racing tires.

Racers running the T4 package are also eligible to participate in the T4 World Cup, held in Jesolo, Italy.


The T4-C1 chassis was designed specifically to suit the TPP-225RS engine with user friendliness in mind. The combination of the chassis and engine bring together optimum power and great handling to provide a fun and competitive race experience for both new drivers and seasoned karters. In order to maintain the low cost of the category, only stock parts such as the seat, axle and wheels are permitted for use on the T4-C1 chassis. User-related adjustments such as caster camber system, ride height and gearing configurations can be adjusted to suit driver preferences.


The TPP-225RS engine was developed by Tillotson with extensive field testing by national and international championship karters over the last three years. It features a completely new crankcase design which is heavily supported to allow a larger size piston compared to other common four stroke engines. The larger, 72mm diameter piston provides excellent torque in the lower rpm band and offers exceptional driveability, making it extremely user friendly for new drivers.

Some technical points:
Capacity: 225cc 4 Stroke

  Power: 15HP
  Engine Weight: 17kg

• Overall weight 69kg to reduce fuel consumption and provide a more nimble driving experience
• PVL Digital Ignition limited to 6,500rpm
• Tillotson FM Series carburetor calibrated for the TPP-225RS engine for easy starting and top performance
• Engine is sealed so no tuning is permitted—only adjustment to the valve clearance is allowed
• Up to 30 hours engine life without maintenance
• Billet CNC machined connecting rod/flywheel for improved strength and reliability
• New design Tillotson crankcase with extra support for the higher power output

Engine oil

Tillotson partnered with XERAMIC® Kart Lubricants to develop an oil that offers longer engine life and optimum lubrication. The oil can detect contamination or additives by inspecting it with a UV lamp to eliminate cheating. The 4-stroke oil is made exclusively for Tillotson.

Tires (Tyres)

Tillotson has developed a tire specifically for the T4 Series in conjunction with Maxxis Tires designed to offer long life, sustained performance and suitable grip for a fun driving experience. The tire will be exclusive to the Tillotson T4 Distributor in your country.

To purchase please contact:


      Weight80 kg
      Dimensions160 × 76 × 68 cm


      Please check with your local T4 Dealer to order or arrange a test drive.

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