motorcycle engine assembly 125cc 4 stroke 70cc

Material Steel 20CrMo, Aluminium Process Forging+ Machining Surface treatment Sand blasting, copper plating,polishing Model NO. 1uz connecting rod PGT104Motorcycle model PGT104 Craftsmanship Forging Packing Carton or Foam box What is a crankshaft of motorcycle ? A crankshaft is a rotating shaft which (in conjunction with the connecting rods) converts reciprocating motion of the pistons into rotational motion. Crankshafts are commonly used in internal combustion engines and