The Cotter Pin is the cheapest item from this partsfiche.
This Rear Wheel (gn250et/ew/ex) diagram displays the required parts for the Gn250e 1998 (w) General (e01) Rear Wheel (gn250et/ew/ex).
Of all the components used in this assembly the Wheel,rr(2.15x10) is the most expensive.