The Crankshaft/piston assembly is constructed from several parts from which the Crankshaft Comp. is the most expensive.
thirty-five components are shown in this Nsr125r 1989 (k) France / Kph Crankshaft/piston exploded diagram.
A sample from the products for the Crankshaft/piston include: Piston B, Key, Woodruff, Crankshaft Comp., Brg,ndl.24x36x14.