Feature(may vary by option.)

●【Specification】Material: Metal; Head: 64mm valves Cylinder Size: 50mm ID; Diamater: Intake Valve Diameter: 18mm; Exhaust Valve Diameter: 16mm; Performance Racing CDI (AC Fired): 70mmx30mmx37mm; Performance Racing Coil length: 360mm
●【Premium Material】This cylinder kit is made of high quality metal, can replace the original correctly, 100% new high quality, durable.
●【Fit For】For 139QMB & 1P39QMB /GY6 100cc 4 Stroke Scooters
●【Package Includes】·50mm Big Bore Cylinder Kit With Assembled Head, Performance Racing CDI (AC Fired), Performance Racing Coil, Rollers, Rocker Arms, Oil Pump & Drive Gear, Intake & Exhaust Studs & Complete Gasket Set
●【NOTE】Instruction not included, professional installation is always recommended.

[For GY6 100cc]

[For GY6 125cc 150cc]

Description

Big Bore Cylinder Piston Kit Fits GY6 100CC 4-Stroke Scooter 1P39QMB 139QMB

NOTE:

Installation Manual Is NOT Included

Professional Installation Is Highly Recommended

Features:

· 100% brand new and high quality,Durable.

· It could correctly replace the original quality part.

· This Performance Racing Parts kit can make full use of your 100cc scooters.

Specification:

Material: Metal

Head: 64mm valves

Cylinder Size: 50mm ID

Diameter:

Intake Valve Diameter: 18mm

Exhaust Valve Diameter: 16mm

Performance Racing CDI (AC Fired): 70mmx30mmx37mm

Performance Racing Coil length: 360mm

Please allow 0.5-1 inch difference due to manual measurement.(1inch=2.54cm)

Please Compare The Scooter Kit With Your Original One Before Purchasing!

Fits (For the reference):

For 139QMB & 1P39QMB/ GY6 100cc 4 Stroke Scooters

Package includes:

· 50mm Big Bore Cylinder Kit With Assembled Head,

· Performance Racing CDI (AC Fired),

· Performance Racing Coil

· Rollers

· Rocker Arms

· Oil Pump & Drive Gear

· Intake & Exhaust Studs & Complete Gasket Set