I recently acquired a 1954 HS Mk II frame and I’m searching for parts to restore it.

The original engine casings would have been PS216 so if anyone has any history or information about these I’d be very interested.

On that note, I’m looking for any 1954/55 HS components, regardless of condition. I ...

Good day all,

A question, if I may, and apologies if it has been mentioned in the forum before…..

Looking at Service Bulletins in the AOMCC knowledge base, No 109A lists the ‘54 model Scramble HS comp ratio as 9:1 and then No 114, lists the ‘55 model as 8.7:1?

Looking through the manuals, before ...

Found this snippet in the back of my 2nd hand copy of Ariel Story.

In no particular order…..

From discussions with Ralf Arvidsson and a doc from Jørgen Anderson

Sorry,

Being thick, my dispatch entry shows it as 120mph speedo, Smiths literature must be incorrect when referring to the 659/L - 'D' shaped for HS.

I'm still after the bracket, if anyones knows of, or has one.

Cheers,
Chris

The speedo bracket 5213-50

Hi Simes,Dave,

Many thanks for the replies.
As per parts books, couldn’t find an HT one on AOMCC database...
So as per yours and Parts listing (Excluding LH)…

‘54 Models all used S.467/3/L
‘55 All used S.467/3/L (Except HT which changed to S.659/L).
’56 All used S.467/195 (Except HT & HS I – if ...

Hello all,
Currently researching some details for my 56 HS and would like some advice.
Mine was one of a few MKI’s that was fitted with a speedometer.
I have found some literature which is from a Smiths catalogue but it does not seem to make sense if MK3’s were using the nacelle….

For UK spec ...

Does anyone have any knowledge or pics of a low swept exhaust on an HS MK I other than on resto’s?

Looking at my bike’s info, it was ordered with one from factory.
All pics I’ve seen, with the exception of the HT Scrambler, have the expected high level version.
As it was a MK I, for the cam to ...