The Bolt, Flange is the lowest priced item on this 20 Rear Arm schematic.
The Collar 802823130000 is the most widely applied product in the YZF-R125 R125 2015 5D7R EUROPE 1P5D7-300EY 20 REAR ARM ( three times ).
Of all the components used in this assembly the Rr Arm Comp is the most expensive.