Cylinder Polini For Race 47 mm Ø12 for Piaggio Ciao / Si / Bravo (4 studs)

Polini For Race 47 mm is a top-level racing cylinder developed specifically for use with Polini For Race engine cases. It is a high-performance cast iron cylinder featuring four mounting studs, providing better load distribution and greater stability at high RPM.

During development, Polini paid special attention to exhaust gas flow and cylinder scavenging efficiency, resulting in outstanding performance and ideal conditions for serious racing modifications of Piaggio mopeds.

Advantages

• Racing design with 4 mounting studs
• Improved load distribution and greater stability
• Exhaust port with additional booster ports
• Single piston ring for reduced friction and higher RPM
• Excellent high-RPM performance
• High-quality Italian Polini craftsmanship

Technical specifications

• Cylinder diameter: 47 mm
• Piston pin diameter: Ø12 mm
• Material: cast iron
• Version: 4-stud
• Piston with a single piston ring
• Exhaust port with booster ports
• Aluminum head gasket

Suitable for

• Piaggio Ciao
• Piaggio Si
• Piaggio Bravo
• Piaggio Boss
• Piaggio Grillo

Recommended use

The cylinder was developed specifically for use with:

• Polini For Race engine cases
• Polini For Race Ø12 mm crankshaft
• Larger sport carburetor
• Racing exhaust

For proper operation and maximum performance, Polini recommends using the Polini For Race 200.0425 exhaust.

The Polini For Race 47 mm is one of the most powerful solutions available for Piaggio mopeds and is intended for riders who want to extract maximum power and performance from their Ciao, Si or Bravo engine.