The most reasonably priced component used on the Clr125 Cityfly 1998 (w) Euro Direct Sales / Cmf Crankshaft/piston is the Clip,piston Pin.
This CRANKSHAFT/PISTON assembly utilises eighteen Roller,4x14.8 A(s) - the highest specified component.
Some items from this specific schematic: Clip,piston Pin, Pin Piston, Roller,4x14.8 A, Brg,ball Radial 2.