Cylinder Suitable for 2 stroke motorized bike engine  66cc, 70cc, 80cc
 
This is a cylinder and an inlet pipe for a 66c motorized bicycle engine.  
Installation only takes 4-5 minuets. It can be used with your stock head and spark plug.
This cylinder will make your bike faster, and run more efficient! it will accelerate faster, and go to higher RPM than before