HONDA CB750 FOUR FRONT BRAKE DISC AND REAR SHOCKS

[ADEEL MIRZA]

The front brake disc installed on my CB750 Four (1976) is 275mm in diameter. Can anyone tell if this is the original brake disc. If not, what is the outer diameter of original front disc installed on CB750 four.

[shinyribs]

Sounds about right. Different years and models used slightly different discs. I have two original discs of two different bikes. One is 10.75'' the other is right at 11''.