1955 Ajs 18s - which stanchions

Information relating to the Matchless G80 or AJS Model 18 500cc Heavyweight.
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moley
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1955 Ajs 18s - which stanchions

Post by moley »

Hi all ordered fork parts on club and the chap phoned me because he said for 1955 the stanchion size was 1 & 1/8 and I had ordered parts for 1 1/4

Am a going mad ? I’m sure 54 was the last year with the smaller stanchions

In the end I told him that stanchions were def 1 & 1/4 and he said the yokes must have been changed at some point

Andy
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Duncan
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Re: 1955 Ajs 18s - which stanchions

Post by Duncan »

Changed for the 1955 model year according to : https://www.jampot.com/article_read.asp?id=20
Reynard24
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Re: 1955 Ajs 18s - which stanchions

Post by Reynard24 »

You are correct Andy, 1955 model year was the first to use 1 1/4 stanchions. 1955 is a “one year only” with different seals and top bushes, top nuts and the domes to finish it all off. All are shown in the 1955 spares list.
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clive
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Re: 1955 Ajs 18s - which stanchions

Post by clive »

Don't forget the special washers underneath the top nuts which are what the domes push onto.
clive
if it ain't broke don't fix
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ajscomboman
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Re: 1955 Ajs 18s - which stanchions

Post by ajscomboman »

clive wrote: Tue Jan 24, 2023 7:42 pm Don't forget the special washers underneath the top nuts which are what the domes push onto.
55 was a one off year for the forks without a doubt, Special hex top nuts for 1-1/4" stanchions, special elliptical washer and the lovely domed caps for them! Good job I had them made specially. :thumbup:
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clive
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Re: 1955 Ajs 18s - which stanchions

Post by clive »

the frame was pretty weird too
clive
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Joker_Bones
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Re: 1955 Ajs 18s - which stanchions

Post by Joker_Bones »

I didn't know the '55 front forks had domes on the cap nuts, I looked at the diagram in a parts list to see what you meant...
A friend's '55 G9 is parked at mine and I thought the forks I used on my 350 were '55 (1 1/4" with hex cap nuts) ... Not a dome in sight ??
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