This is supposedly from a DOHC CB750 but the mounts don't match up with anything I recognize.
The 79K's have a hinge that opens on the right side, and the 80-82 Ks and Cs have mounts on the outer edge but not like this weird plate in the middle.
Anyone know what bike this seat came from?
Thanks!
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Here's the bottom of a CB750C seat for comparison:
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