Tillotson T4 Jr/Sr Kart 225RS Engine – 2025 SPEC

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 Senior and Junior chassis and engine are exactly the same, however for competitive use of the Junior kart a mandatory engine spec (limited) is available as an option.