100CC BICYCLE ENGINE KIT: The four stroke engine boasts a strong 3.5HP horsepower, a displacement of 100cc, a rated power of 2kw/h, and also a max rotating speed of 3600RPM, which offers you with solid power and accelerates your bike to some max speed of 50km/h.Fork: the part that attaches a bicycle’s frame to its front wheel and handlebars and l