The F-12 Crank Arm - Crank Pedal assembly is constructed from several parts from which the Shaft Comp.drive is the most expensive.
twenty-two components are shown in this Pa50cvlcs-nl 1982 F-12 Crank Arm - Crank Pedal exploded diagram.
Some items from this specific schematic: Chain Pedal, Arm.l,crancpa50, Free Wheel, Arm, R Crank.