'53 or not

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Re: '53 or not

Postby hayleyl » Sun Dec 16, 2018 8:39 pm

Jerry - relating to an earlier post - my K frame is stamped C53 (which I believe is March 1953) - but is a competition frame. No oil tank mounts, no stand mount, short rake etc. and weighs in at 19lb. I've never seen an earlier number. And yes - do not attempt to re-stamp engine numbers. Cheers Hayley.
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Re: '53 or not

Postby JerrryR » Sun Dec 16, 2018 11:41 pm

Hi Hayleyl,
For production bikes, Ks, the earliest frame date I've seen is an E3. For racing frames I have seen 3 that had a C3 code like yours. Apparently they started date coding racing frames before the street models. I have never seen a D3 frame. I assume yours is stamped C3 not C53?

3C K Racer Frame 2.JPG
3C K Racer Frame 2.JPG (352.44 KiB) Viewed 7914 times


3C K Racer Frame 3.JPG
3C K Racer Frame 3.JPG (301.89 KiB) Viewed 7914 times
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Re: '53 or not

Postby hayleyl » Mon Dec 17, 2018 12:52 am

Yes Jerry - sorry - 3C. Paint had peeled off where seat tabs had been. Neck pic attached as well. Cheers Hayley.
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Seatmount.jpg
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Neck.jpg
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Re: '53 or not

Postby K Daddy » Sun Dec 23, 2018 12:31 pm

I assume the tabs with mounting holes that extend below the frame are for mounting the gas tanks. Am I wrong on this?
What are the holes used for that are forward of the tabs and are drilled through the center of the frame?
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Re: '53 or not

Postby hennesse » Sun Dec 23, 2018 3:08 pm

K Daddy wrote:I assume the tabs with mounting holes that extend below the frame are for mounting the gas tanks. Am I wrong on this?
What are the holes used for that are forward of the tabs and are drilled through the center of the frame?


Take a look in the Technical section, under Frames. Pages 13 and 14 should give you your answer.
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Re: '53 or not

Postby Mutt » Sun Dec 23, 2018 3:58 pm

[quote="JerrryR"]Hi Hayleyl,
For production bikes, Ks, the earliest frame date I've seen is an E3. For racing frames I have seen 3 that had a C3 code like yours. Apparently they started date coding racing frames before the street models. I have never seen a D3 frame. I assume yours is stamped C3 not C53?

strange that the MOCO didn't stamp K frames in 52, but they stamped all their other models.the Panhead, ServiCar and the 125
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