1Set 50mm Big Bore Cylinder Rebuild Kit for GY6 49cc 50cc 60cc 80cc 100cc Engine

1Set 50mm Big Bore Cylinder Rebuild Kit for GY6 49cc 50cc 60cc 80cc 100cc Engine Please note this kit is only used for GY6 139QMB 4-Stroke Engine.

Inner Diameter of Cylinder: 50mm

Outer Diameter of Piston Pin: 13mm

Include Cylinder,Piston,Piston Ring,Piston Pin,Piston Pin Clip,Valve Oil Seal,Gaskets,Tensioner Gasket,Exhaust Gasket,Intake&Exhaust Studs,Exhaust Nut

High Performance Upgrade 50mm Cylinder Rebuild Kit for GY6 49cc 50cc 60cc 80cc 100cc engine

Includes:

1 x GY6 100cc 50mm Cylinder Block 1 x GY6 100cc 50mm Piston 1 x GY6 100cc Piston Pin (Diameter: 13mm) 2 x GY6 100cc Piston Pin Clip 1 x GY6 100cc High Quality Piston Ring set 1 x GY6 100cc Gasket sets (Cylinder Gasket, Cylinder Head Gasket, Tensioner Gasket) 2 x GY6 100cc Valve Oil Seals 2 x GY6 100cc Intake Studs 2 x GY6 100cc Exhaust Studs & Nuts 1 x GY6 100cc Exhaust Gasket

1. Please confirm the parts will be fit on your scooter/motorcycle before you place the order. 2. Some Modified Spare Parts need to do a small change on your original motorcycle or engine,please make sure you are able to install them by yourself.NO installation instruction and recommend professional installation.