Metrakit Pro Race Kit Minarelli AM6 70cc Cylinder and Crankshaft

Metrakit ProRace kit consisting of the Cylinder ProRace 70cc, reinforced ProRace crankshaft, and crankshaft bearing and seals kit, designed for Minarelli AM6 engines. This setup is aimed at high-performance builds, offering a balanced configuration capable of withstanding the high revs and demands of a racing engine.

The Cylinder Metrakit ProRace 70cc Minarelli AM6 is one of the most well-known kits in the world of 2-stroke tuning. Manufactured in high-quality aluminum with a nickel-silicon carbide (NiSiC) coating, it offers excellent heat dissipation and great wear resistance, allowing it to operate at high temperatures and engine speeds.

Its design incorporates optimized port timing with oversized transfer ports and a high-performance exhaust outlet, aiming to maximize Cylinder filling and gas evacuation. The version with a CNC head improves cooling and ensures more efficient combustion thanks to a combustion chamber specifically designed for this setup.

To make the most of the full potential of the Cylinder ProRace, the kit includes the Metrakit ProRace 3 Minarelli AM6 crankshaft. Designed to withstand the high RPM of racing builds, it features reinforced construction with high-strength materials, specific balancing, and a greater capacity to handle the loads generated by a high-performance Cylinder.

The set is completed with the Metrakit crankshaft bearing and seals kit, essential components for a reliable assembly and to ensure proper engine sealing. Suitable bearings and seals help maintain crankcase compression and ensure proper engine operation even under demanding conditions.

Assembly requirements and recommendations

• Use a racing exhaust designed for high-performance 70cc cylinders.
• A PWK-type flat-slide Carburettor between 24 mm and 28 mm is recommended.
• Carry out a complete carburetion setup before using the engine.
• Use a reinforced clutch capable of transmitting the power generated.
• Use high-quality premix oil for competition 2-stroke engines.

Main features

• Complete Metrakit ProRace 70cc tuning kit for Minarelli AM6.
• Aluminum Cylinder with nickel-silicon carbide coating.
• CNC head designed to improve cooling and performance.
• Reinforced ProRace crankshaft prepared for high revs.
• Specific bearings and seals to ensure the reliability of the assembly.
• Balanced configuration for racing engines and advanced builds.
• Designed to obtain maximum performance from an AM6 70cc engine.

Application

Kit compatible with Minarelli AM6 engines fitted to geared mopeds such as Aprilia RS 50, Yamaha TZR 50, Yamaha DT 50, Rieju MRT, Beta RR 50, Sherco 50, Fantic, and other models equipped with this engine .

Important

This kit is intended for sports setups and competition use. To ensure maximum performance and reliability, it is essential to carry out correct installation, adjust the carburetion, and use components compatible with the engine's level of tuning.