Need help identifying this rotor!

[Economy Cycle John]

I think it's Yamaha. Not a Daytona. Thought maybe XS650 but only 4 bolt holes. Looks to be of the same age/period as the RD rotors. Thick like the RD rotors. LC? Banshee? ATV? Google wasn't much help.

[oxford]

If my google-fu is strong, I believe it is a rear rotor from a 1978 Kawasaki kz1000 Ltd.

[scully]

or even a 76 kz750 twin :) but actually it's a kz rear brake rotor 76 thru 79 I think. Kz 650,750,900 and 1000

[Economy Cycle John]

That sure looks like it, thanks
john

[m in sc]

yeah i was going to say kawasaki. they also fit some of the triples.