Polini Sport 70cc cast iron cylinder kit for horizontal Minarelli LC engines (Yamaha Aerox, Malaguti F12, and compatible 50cc scooters).

The durable cast iron alternative to Polini's aluminum cylinder, engineered for reliable everyday performance with strong low-to-mid-range torque and acceleration. Delivers approximately 9 hp with proper tuning (17.5 mm carburetor and performance exhaust), while remaining compatible with stock carburetors. Built for durability and consistent power delivery, this high-torque cylinder features a 2-ring piston design optimized for daily riding.

The 47 mm cast iron bore includes 5 transfer ports and a straightforward exhaust port for efficient gas flow. Includes high-compression aluminum head, complete gasket set, and carbon reeds for reliable ignition.

Important : Requires a connecting rod with 12 mm piston pin bearing. One of the market's most trusted sport cylinders for Minarelli LC platforms.

• 47 mm cast iron cylinder with 5 transfer ports
• 2-ring piston with 12 mm piston pin
• High-compression aluminum cylinder head
• Carbon reeds included
• Complete gasket set 
• Spark plug thread = M14 long