Need some help with parts ID

Hi all,
I've got some brake rotors and a swingarm that came frome a swap met, was told they're KZ1000 parts.  I'm not sure they are.  Not much spent, (and of course they came with the standard swap meet guarantee). Photos attached. Swingarm doesn't appear to have any markings or stamps on it and the chain guard mounts seem different.  Rotors have date markings shown.  Any help is appreciated.



edit: there are stamped numbers on the rotors that don't show in these photos, I'll take another photo tomorrow.

Swing arm is, looks exactly like my swing arm a the 1980 KZ1000 LTD. How ever the disks appear to be smaller OD

On those disc's, focus on Kawasaki models in the 1979 and 1980 years. Thats when the still used the 4-bolt hub and 8-rivet attachment arrangement. Could be KZ650, 750, 400??? If both have the same offset and "thin" like 4.5mm then most likely off a duel front brake equipped model.

more photos of rotors
Found some measurements on Bikemaster 900 (Germany?) parts listing.  Looks like they are p/n 41080-1019.  275mm OD, 58mm ID, 4 bolts, 5mm thick.  Used on 78 and 79 KZ650C Custom and KZ650D2 SR models dual front brake, Frame number 023101 and up.  (Turns out KZ1000 rotor is around 1" larger OD)  I also found a thread on KZR from 2006 where someone also bought some for his KZ1000 and found the OD was about an inch small. (ha!)
So if anyone needs the rotors for KZ650C or KZ650D2, they're for sale cheap.  Also if the swingarm is for a KZ1000 LTD that will go cheap, too.  Let me know.
Thanks for the help  

Looks like Z1R parts, but its my vage first thought.....

That's what I guessed when I saw them.  Thought it was a wicked good deal!

Check your e mail Michael A.

Gdizard - Was that for me?

No, I am trying to get in contact with Our Highly Esteemed German member aka Scirocco

OK