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Rotax Senior MAX

Engine | 125cc, 2-Stroke, Single Cylinder

Power Output | Approx. 30 HP (22 kW)

Max RPM | 14,800 - 15,000

Rotax Senior MAX is the flagship class of the Rotax ecosystem, delivering high performance and strong top-end speed. Known for its balance of power and reliability, Senior MAX rewards precision and consistency — making it a benchmark category for senior kart racing worldwide.

In KartSim Pro UK, the Rotax Senior MAX has been recreated to capture the engine’s power delivery, braking demands and chassis behaviour under race conditions. Drivers can use this realism to help refine their braking technique, manage their tyre performance over long runs and practise their racecraft in close competition — all within a simulated environment trusted by professional drivers and teams.