Doesn't look like it from the first picture. I think he should look at the left side too. It is P/N 53235300000 and # 8 in the attached picture. t is always helpful to know, but I'm guessing this is a CB450 K6-7. Top bridges for the disk brake 450 DOHC are really hard to find. The last guy on this forum who broke one of these had to have his welded.Is the special spacer washer in place? Easy to over torque if it is missing.
I bet it is a 1973, nice bike. It will be easier to find a new top bridge. There were more 350s than 450s made. It still needs two of the spacers.It is a cb350g. As soon as I figure out how to do that neat little tag line at the bottom of my posts, I will get that on there so guessing isn't necessary.
Thanks Jamespal, got the signature figured out!I bet it is a 1973, nice bike. It will be easier to find a new top bridge. There were more 350s than 450s made. It still needs two of the spacers.
They make it tricky to edit your signature. At the top of the page there is a link "Forum Actions." From there pick "Edit Profile. On the left column about 2/3 of the way down is the link to Edit Signature. Just above the Edit Signature is the Edit Avatar.