Rear brake pedal

[florence]

I have two different kinds of rear brake pedal, one is round in cross section and the other is flat.  Does anyone know to which models these apply?

Also, I have headlamp brackets with indicator mountings on.  Are these a later type?

[Bryanj]

Flat one is usually 550 and a different offset, brackets with mountings were 550--especially USA K0-2

[florence]

Thank you Bryan.

Steve

[Yoshi823]

CB550K3 rear brake lever is tubular because of the 4-into-4 exhausts, whereas the CB550F1 & F2 are flat as the collector for the 4-into-1 collector  is adjacent to the rear brake lever.
http://www.cmsnl.com/honda-cb550k3-four-england_model14671/partslist/F18.html
http://www.cmsnl.com/honda-cb550f1-super-sport-550-four-1976-england_model17113/partslist/F17.html