100CC BICYCLE ENGINE KIT: The 4 stroke engine boasts a sturdy 3.5HP horsepower, a displacement of 100cc, a rated power of 2kw/h, and a max rotating speed of 3600RPM, which presents you with powerful power and accelerates your bike to a max speed of 50km/h. 79cc BBR Tuning “The Beast” https://cruzamwfm.prublogger.com/34157449/the-mountain-bike-parts-diaries