With a quantity of four pieces, the Pin,step Bar is the most used part in the F-21 diagram.
A sample from the products for the F-21 include: Holder L.p Step, Bolt,m.step Rub.s, Arm,r.step, Arm ,l Step.
This schematic depicts all components used in the Nt400 Bros 1988 (j) Japan Nc25-100 F-21 partslist.
