GOOFIT 100cc Big Bore Cylinder Rebuild Kit GY6 50cc 139qmb Racing Scooter Parts 50mm Bore Upgrade
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This is 100cc Cylinder Body Kit. It Can be Only Use for GY6 4stroke 49cc 50cc Upgrade to 100cc. It Also Can Fit for 100cc Engine. Pls Confirm The Size of The Parts whick Has Been Marked In The Pictures.
Easy installation with video instruction,you can visit the video on our facebook homepage and Youtube.
Best way to get more RPM,maximum upgrade kit for GY6 50cc 139qmb engine.
One week money back guaranteed if not satisfied,message us for any question,we will try our best to help you