Gusset: plates included for the outsides of frame tubes to bolster joints. These are additional frequently noticed on off highway bikes that have to be sturdier.100CC BICYCLE ENGINE KIT: The 4 stroke engine features a robust 3.5HP horsepower, a displacement of 100cc, a rated power of 2kw/h, along with a max rotating speed of 3600RPM, which deli… Read More