Naraku 50cc SYM and Peugeot 4-stroke 42mm Big Bore Cylinder Kit. Kit includes cylinder, piston, rings, piston pin, cir clips, head gasket, base gasket, exhaust gasket and cam chain tensioner gasket.

• Upgrades to 63.7cc
• Cylinder Bore: 42mm
• Cylinder Sleeve Outer Diameter: 45.7mm 
• Wrist Pin Diameter: 10mm
• Total Piston Height: 33mm

This is a drop in cylinder kit, no crank case modifications required! When used in conjunction with a stock stroke of 46mm the total displacement comes out to 63.7cc.

Fits the following 4-stroke models:

• SYM Mio 50
• SYM Fiddle II 50
• SYM Orbit II 50
• SYM Jet4
• SYM Allo 50
• SYM Cello 50
• SYM Symphony 50
• Lance Cabo 50
• Lance Cali 50
• Lance Havana 50
• Lance PCH 50
• Lance Soho 50
• Peugeot Vivacity
• Peugeot Speedfight 3