Topic: Which bike is this fender from?

[Prospect]

I'm thinking it's from either a GL1000 or a z1?  Any idea?

[754]

GL1000.

[onepieceatatime]

Some of the Hondamatics had a similar fender too.
https://www.cmsnl.com/honda-cb750a-750-hondamatic-1977-usa_model488/partslist/F++06.html

[Prospect]

Some of the Hondamatics had a similar fender too.
https://www.cmsnl.com/honda-cb750a-750-hondamatic-1977-usa_model488/partslist/F++06.html

Yup, looks like it could be from a hondamatic too. 

[754]

If it's from a Matic, the brace should bolt on to a 73 to 78 K fork.... if the brace looks changed,  probably from a GoldWing.
 So on this one it's has to be changed anyway for that fork,  so hard to tell.

Now I wonder if length of fender is the same between Matic and GL?

[Don R]

 My brothers old K4 has a gl fender that looks like that. It's bolted to the bracket. I'm going to swap it back, he's one of those guys that thinks anything different must be better.  It was a gl1000 warranty take off, specs in the chrome that got worse with age.   

[Terry in Australia]

Looks like the very rare CB750K0 "Deluxe", not too many of those white whales out there now..........