Puch Polini 64cc cylinder kit. One of the fastest kits you could strap onto your e50 or za50. This cylinder has by far the coolest port work of any of the Puch kits- or any other kit for that matter. If you dial it in right, you will not be disappointed by the power this cylinder offers. Make sure you cut in those top transfers!
Comes with a 15 Bing intake, reed, piston, ring, pin/clips, cylinder, hardware, and gasket set.