72cc 47 mm High Performance Big Bore Cylinder Kit for 50cc QMB139 Scooter Engines Afikim Electric Vehicle SE and power button

and power button

Our 12-3/4" (325 mm) adjustable shocks with 10 mm eyes for 150cc and 250cc Hammerhead Off-Road® go-karts is your solution to a worn-out suspension system on your Hammerhead Off-Road® go-kart

The tire is flat-free

there are two remotes that you can use to control the three lighting modes

the USB adapter is not recommended for 36 volt or higher systems

72cc 47 mm High Performance Big Bore Cylinder Kit for 50cc QMB139 Scooter Engines Afikim Electric Vehicle SE and power buttonOur 72cc scooter big bore cylinder kit is great for increasing overall performance on small under powered 50cc QMB139 scooter engines. Engine kit increases engine bore size from 50cc to 72cc and includes everything shown in the image; cylinder, rings, and gaskets. This 72cc scooter engine kit increases low end acceleration as well as top speed. This high performance scooter big bore engine kit is easy to install. Combine with a high performance