DR 50cc 38.4mm Cylinder Kit Pin 10 – Vespa Ciao Citta Si AC

The DR 50cc cylinder kit is a durable and sporty upgrade for Vespa Ciao, Citta and Si 50cc 2-stroke air-cooled engines.

With a 38.4 mm bore, this cylinder maintains the original 50cc displacement while offering improved performance thanks to optimized port timing.

Manufactured from cast iron, DR cylinders are known for their reliability and long service life. It features an oval exhaust port, 4 large transfer ports and a 22 mm exhaust outlet for improved gas flow.

The cylinder uses a 10 mm wrist pin and is supplied complete with piston and base gasket.

Technical specifications:

• Brand: DR
• Type: DR50
• Displacement: 50cc
• Bore: 38.4 mm
• Wrist pin: 10 mm
• Material: Cast iron
• Cooling: Air cooled (AC)
• Exhaust port: Oval
• Transfer ports: 4
• Exhaust outlet: 22 mm
• Tuning level: Sport street use

Supplied including:

• 38.4mm cast iron cylinder
• Piston (10mm pin)
• Piston rings
• Wrist pin
• Wrist pin clips
• Base gasket

Also known as DR50 Vespa Ciao cylinder, DR 38.4mm pin 10 cylinder or DR sport 50cc Citta Si cylinder kit.