classic motorcycle forum

Except that I have a variety of Norton singles and twins (mostly projects), and the possibilty of upgrades
to any of them seems to have been (deliberately) designed out ?

The 500 and 600 early dommies are designed around a common crankcase, so that is possible.
But if you put an ohv engine say in a sidevalve frame, then the bloomin footrests can't fit.
And you have to then change a whole heap of parts to make this all work.
And a sidevalve single tank won't fit over an ohv engine, naturally enough.
Changing a 650 to a 750 has studs all over the place half a hole out.
750 to 850 has different stud spacings in the head.
etc etc etc.

Enfields have different engine mounting lug widths on the 350 and 500 engines.
So a simple engine swap is not so simple. etc etc etc.

Dunno if you can unbolt a Trumpy 500 engine and bolt in a 650.
I have heard of folks accidentally (?) competing in a 500 class with a 650 engine.
"Why is that bike so much faster out of the corners ?"

RT Shelley was across the road from the motorcycle side of things ?
They made quite a comprehensive toolkit for the bikes.
Quite collectible these days ...

Count yourself lucky if you can locate a complete set !

Torque wrenches were invented for a reason.

That would/should be grounds for a return or partial refund ?

Seller noted that the chaincases he was sending me had a crack, and included a $50 refund - unasked.
Top marks to that man ....

Interesting about AG Healing.
There were a heck of a lot of aussie tool manufacturers in the past, when you tot them all up.

A lot of light switch types have a wire frame retainer
Ye not missing something similar ?

Dowidats were made in australia at some point.
Strong dependable tools.

If you watch the local fleabay long enough, someone will break ranks and offer a set or 3 at reasonable prices.

I picked these up for a travelling toolkit for a bike, not so long ago.
As you can see, not really a 'set'.
These didn't break the bank, by any means.
And if the plating is not perfect, many sellers will take an offer.
(and some silver paint will hide many sins - not when you are buying though !!)
Red in my workshop means W-BS.

Can you directly load these pics to somewhere like postimage ?

You don't need to sign in, or need to pay, or anything.
Just 'choose images', locate in on yer puter, click to upload, and voila.
Copy-n-paste and save the directlink in the 2nd row
And also save the final 'delete' link, in case you wish to later erase them.
Further instructions on request, but even I find this bulletproof.

https://postimages.org/

Thanks for the replies - helpful already.

My bike is identical to the one in MAAS
Almost identical.
My tank has very fine twin gold pinstripes.
The MAAS has one very wide gold stripe.
I wondered if that happened in the resto ?

A photo of the components would be marvellous - at your leisure.
Been pondering this for years.
Don't think I've ever seen a speedo fitted to just postwar bikes.

Note that a speedo was listed as an option for the 125cc versions, even a few years later.
There are brackets on the girder fork to bolt it to on mine though.
https://i.postimg.cc/Dw73dhFH/Excelsior-Tom-Byrne-Aug-1950.jpg

P.S. I wondered how a bike without a speedo could be legal, even then ??