Malossi Aero / SE50 72cc Big Bore Cylinder Kit
This is the best big bore kit made for the Aero, and SE50 Elite with USDM AF05 engine. Why get a cheaper chinese/taiwan cylinder kit, when these are already so affordable? This kit will give you trouble-free years of performance.
Use your stock head, or upgrade to a malossi performance head, specifically for this kit!
Get A cylinder head HERE