IAME S125 Engine – Professional Senior / Junior Kart Racing Power Unit
The IAME S125 engine is a modern high-performance 125cc two-stroke kart racing engine developed for competitive Senior and Master categories. Built with advanced engineering and race-proven reliability, the IAME S125 offers strong acceleration, smooth power delivery, and consistent performance for drivers competing in professional karting environments.
The engine uses a single-cylinder two-stroke configuration with a reed valve inlet system, allowing efficient airflow and responsive throttle control. When paired with a digital ignition system, the engine delivers reliable starting, stable performance, and precise response across the rev range.
With a displacement of 124.8cc, maximum power of approximately 37 hp, and rev limit of up to 15,000 RPM, the IAME S125 engine is designed to perform at a high level on both technical circuits and fast layouts. Its water-cooled system helps maintain proper operating temperature during long race sessions, while the centrifugal dry clutch improves drivability and consistency.
Each engine supplied by XELAR Motorsport UAE is provided as a complete racing package for drivers who want a professional and race-ready engine solution.
What is Included with the IAME S125 Engine Package
The complete engine package supplied by XELAR Motorsport includes the essential racing components required for installation and competitive use.
Included in the package:
• IAME S125 engine unit
• Racing carburetor
• Exhaust system
• Radiator and cooling components
• Digital ignition system and wiring loom
• Engine mount and installation hardware
• Fuel line and throttle cable kit
This package is prepared to standard racing specifications and is suitable for testing, track use, and competitive kart racin
Technical Specifications for the IAME S125 Engine:
• Model: S125 – 125cc
• Description: Single cylinder, 2-stroke
• Class: Senior / Master
• Category: 125cc
• Bore: 53.89 mm
• Max Bore: 54.08 mm
• Stroke: 54.40 mm
• Displacement: 124.08 cc
• Ports: 5
• Balancer Shaft: Present
• Inlet System: Reed valve
• Lubrication: Oil mixture
• Ignition System: Digital
• Transmission: Centrifugal dry clutch
• Cooling System: Water
• Starter: Electric start
• Carburetor: Tillotson HW-50A
• Maximum Power: 37 hp
• Maximum Torque: 23.5 Nm
• Maximum RPM Limit: 15,000 RPM
Professional Support:
XELAR Motorsport provides guidance and technical support for customers purchasing the IAME S125 engine. Our team can assist with installation advice, setup recommendations, cooling layout, and preparation for track use.
This makes the IAME S125 engine package a strong choice for drivers looking for a competitive, reliable, and professionally supported racing engine in the UAE.
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.
