100cc 50mm Big Bore Set Power Pack Exhaust For GY6 50cc QMB139 Chinese Scooter

Specification:
Model: 683472
Product Name: Scooter Kits
Color: As the picture shown
Material: Metal
the valves is 64mm
Big Bore Cylinder Kit With Assembled Head Diameter: 50mm
Performance Exhaust Red: 350mmx 90mm
Performance Racing CDI (AC Fired):70mmx30mmx37mm
Fitments (For the reference):
Fits 139QMB & 1P39QMB /GY6 50cc 4 Stroke Chinese Scooters
Features:
Chinese Scooter Parts 100cc Big Bore Kit Chinese Scooter Performance Racing Parts 139QMB, 1P39QMB, GY6 50cc
Chinese Scooter 100cc Big Bore Kit
If you are looking to get the most out of your 50cc Scooter then here’s the kit for You.
Note:
1.We provide clear pictures, measurements where possible. Please check as much as possible to make sure the item is the one that you need.
2.Please allow 0.5-1 inch difference due to manual measurement.(1inch=2.54cm)
3.There are no instructions included in this kit.Professional Installation Is Highly Recommended??
4.Please Compare The Scooter Kit With Your Original One Before Purchasing??
Package Include:
50mm Big Bore Cylinder Kit With Assembled Head,
Performance Exhaust Red,
Performance Racing CDI (AC Fired),
Performance Coil,
Performance Cam,
Big Bore Main Jet,
Rocker Arm Set,
8Gram Roller Weights,
Oil Pump & Sprocket,
Intake & Exhaust Studs & Complete Gasket Set