100CC BICYCLE ENGINE KIT: The four stroke engine features a robust 3.5HP horsepower, a displacement of 100cc, a rated power of 2kw/h, and a max rotating speed of 3600RPM, which supplies you with powerful power and accelerates your bike to the max speed of 50km/h.The Phantom boasts a 52mm bore, redesigned, single piece cylinder merged with a 40mm st