?POWERFUL POWER?The 100cc bicycle engine kit provides a powerful 3.5HP horsepower with 100cc displacement, rated at 2kw/h and 3600RPM, giving you with a powerful power to speed up your bike as much as 50km/h top rated speed.X More Intricate Repairs & Servicing — Whilst 4-strokes may perhaps run much more efficiently, it's going to take plenty of