Trkimal 50mm Cylinder Kits for GY6 49CC 50CC 139QMB Engine, Upgrade GY6 100cc Big Bore Rebuilt Cylinder Kits 4 Stroke Motor for Moped Scooter ATV Go Kart.
Brand: TRKIMAL

1.Trkimal brand in motorcycle parts
2.Upgrade 50mm 100cc Cylinder Kit for GY6 50cc 139QMB Engine
3.This Parts Fit Most of Chinese Made Scooters Gokart and ATVs.Such as JONWAY,JMSTAR,ROKETA,SUNL,TANK,PEACE,TAOTAO etc...
Package information
1*Cylinder
1*Piston
1*Piston Ring
1*Piston Pin
2*Piston Pin Clip
2*Valve Oil Seal
1*Cylinder Head Gaskets
1*Cylinder Body Gaskets
1*Tensioner Gasket
1*Exhaust Gasket
2*Intake Studs
2*Exhaust Studs
2*Exhaust Nut

1.Inner Diameter of Cylinder bore: 50mm, Outer Diameter of Piston Pin: 13mm
2.Outer Diameter of Piston: 50mm
3.Easy installation, Upgrade your engine from 50cc to 100cc with more power to climb hill
4.Include Cylinder,Piston,Piston Ring,Piston Pin,Piston Pin Clip,Valve Oil Seal,Gaskets,Tensioner Gasket,Exhaust Gasket,Intake&Exhaust Studs,Exhaust Nut