Parts such as the Transmission: Washer,thrust,24, Gear,m/shaft 3rd, Bolt,special,10mm, Coll,spline,28x17 are included in the Cbx1000 Supersport 1980 (a) Canada Transmission parts fiche.
This TRANSMISSION assembly utilises four Washer,thrust,28(s) - the highest specified component.
The most reasonably priced component used on the Cbx1000 Supersport 1980 (a) Canada Transmission is the Roller,6x10.
