The most reasonably priced component used on the Ct125 1982 (c) England F-4 Steering Handle - Top Bridge is the Ball,steel.,6.
Parts such as the F-4 Steering Handle - Top Bridge: Race,topcone, Race,top Ball, Nut Thin 5mm, Lock Comp,handle are included in the Ct125 1982 (c) England F-4 Steering Handle - Top Bridge parts fiche.
On this parts fiche the Ball,steel.,6 is the most specified component.