Malossi Sport 50ccm Cylinder Kit (40 mm) for Peugeot AC – noticeably more power for everyday use

With the Malossi Sport 50ccm Cylinder Kit, you get a high-quality cast iron cylinder in standard bore 40 mm, designed for reliable performance. Through optimized port timing and an enlarged exhaust port, the kit typically delivers approx. 2–3 hp more compared to the standard cylinder – ideal if you want to give your Peugeot AC setup (e.g., Speedfight/Zenith/Vivacity etc.) more pull without extreme tuning.

The kit is delivered complete including gaskets, piston, and cylinder head. It works particularly well when combined with exhaust systems such as Yasuni Z or Laser XPro.

Features & Benefits

• 50ccm Sport cylinder with 40 mm standard bore
• Cast iron: robust, suitable for everyday use, and proven
• Optimized port timing for better filling and power delivery
• Enlarged exhaust port for higher throughput
• Power increase of approx. 2–3 hp compared to standard cylinder (depending on setup)
• Complete scope of delivery: gasket, piston, and head included
• Very good combination with Yasuni Z or Laser XPro

Technical Details

• Cylinder: Malossi Sport
• Displacement: 50 ccm
• Bore: 40 mm (standard bore)
• Material: Cast iron
• Design: optimized port timing, enlarged exhaust port
• Scope of delivery: cylinder, gasket(s), piston, cylinder head

OEM Numbers (for comparison purposes)

• 31 8573
• 318573

Compatibility

Fits many vehicles with Peugeot AC (air-cooled), e.g., Peugeot Speedfight 1 50 AC, Peugeot Speedfight 2 50 AC or Peugeot Vivacity 50 – as well as many other models from the list.

Why Malossi?

Malossi has stood for cleanly developed tuning parts with everyday-suitable tuning for years. The Sport setup is exactly right if you are looking for a reliable cylinder with noticeably better performance for your Peugeot AC.