Rotax 125 Senior MAX EVO Kart Engine
The Rotax 125 Senior MAX Engine is one of the most respected and widely used kart engines in international motorsport. Designed for experienced drivers and competitive racers, this power unit delivers a perfect combination of performance, durability, and user-friendly operation. The EVO generation introduces improved efficiency, better throttle response, and enhanced reliability, making it an excellent choice for racing in demanding environments such as the UAE.
This engine is CIK-FIA approved, ensuring it meets global racing standards and can be used in national and international championships. With strong torque delivery and smooth power progression, drivers benefit from excellent acceleration out of corners and consistent lap time performance. The electronic exhaust valve system optimizes engine output across the rev range, allowing both professional racers and ambitious club drivers to maximize their track performance.
The engine is also popular among serious leisure karters who want race-level performance combined with manageable maintenance requirements. The electric start system, modern carburation setup, and efficient water-cooling system make operation straightforward and reliable. The engine’s balanced design helps reduce vibration and improves driver comfort during long race sessions.
In competitive racing conditions, this engine demonstrates exceptional endurance and stability. The EVO concept includes improved wiring harness reliability, upgraded electronic components, and enhanced cooling efficiency. These improvements ensure consistent power output even during long practice sessions and race weekends in high temperatures.
Whether used for professional racing programs, driver development, or high-level club competition, this engine package provides everything needed to compete confidently. Its global support network, widely available spare parts, and proven track record make it one of the safest investments for karting teams and drivers looking for performance and reliability.
What is Included with the Rotax 125 Senior MAX EVO Kart Engine
• Rotax 125 Senior MAX EVO engine unit
• Intake silencer
• Carburetor
• Fuel pump
• Exhaust system
• Radiator
• Battery box with cover
• Complete wiring harness
• OFF ON START switch
• Relay
• Mounting accessories
Technical Specifications
• Engine type: Single cylinder 2-stroke
• Displacement: 124.8 cc
• Cooling system: Water-cooled
• Transmission: Direct drive centrifugal clutch
• Starting system: Electric start
• Power output: Approx. 30 hp at 11,500 rpm
• Maximum torque: 21 Nm at 9,000 rpm
• Exhaust valve: Electronically controlled
• Carburetor: Dell’Orto VHSH
• Weight: 12 kg bare engine approx
• Complete power pack weight: approx 23.1 kg
• Chassis compatibility: 1040 mm wheelbase
• Race category: Senior non-gearbox
Explore our karting programs and race support services through XELAR Motorsport.
Drivers interested in testing can book a session through our kart testing program
All karting safety equipment must comply with FIA homologation standards.
