Top Performances Black Trophy 50cc 40mm Cylinder Kit – Minarelli Horizontal LC – Cast Iron

The Top Performances Black Trophy 50cc cylinder kit is the successor to the well-known Trophy cylinder and is designed for Minarelli horizontal liquid-cooled (LC) 2-stroke engines, such as Yamaha Aerox and similar models.

With a 40mm bore and original stroke, this kit remains within the 50cc class while delivering noticeably improved performance over stock. The cast iron construction ensures excellent durability and reliability for everyday use.

With the right setup, power outputs of 6 to 8 hp are achievable.

Technical specifications:

• Brand: Top Performances
• Series: Black Trophy
• EAN: 9931110
• Displacement: 50cc
• Bore: 40mm
• Material: Cast iron
• Cooling: Liquid cooled (LC)
• Wrist pin: 10mm
• Transfer ports: 5
• Exhaust port: Oval
• Stroke: Original
• Connecting rod length: Standard
• Spark plug thread: M14 short
• Tuning level: Sport

Supplied including:

• 50cc cast iron cylinder
• One-piece high-compression aluminium cylinder head
• 2-ring piston complete (10mm pin)
• Gasket set

Also known as Top Performances 50cc Minarelli LC cylinder, TP Black Trophy 40mm or Yamaha Aerox 50cc sport cylinder.