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The Classic Biker Bar / Re: Locknut
« Last post by murdo on March 16, 2025, 08:39:52 PM »
Thank you for the replies. I am putting tapered roller bearings in the headstem and need a locknut to hold the tension when fitting the top plate.
Thanks Rex but I would hate to think of the price of a tap to use once. I will cut a thread in some bar stock with my lathe.
1951 G2 Bullet trials.
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The Classic Biker Bar / Re: Locknut
« Last post by Rex on March 16, 2025, 04:36:12 PM »
If you have access to a lathe or pillar drill, why not get some hex stock and the relevant tap and make one?
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The Classic Biker Bar / Re: Locknut
« Last post by R on March 16, 2025, 06:31:01 AM »
Surprising about Modaks, I thought they had about everything under the sun.

Is this not a crankpin nut - item 5
(Or the shaft nut item 23.)
This is a 1950s Bullet, G2

https://www.hitchcocksmotorcycles.com/partsbook-pages/1478#page-1478-position-5

All British Cycle Thread is 60 degrees.
BSF & Whitworth are 55 degrees.
BA is 47 1/2 degrees.

Needs to be GOOD steel.



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The Classic Biker Bar / Re: Locknut
« Last post by murdo on March 15, 2025, 11:17:38 PM »
Thanks for the reply. Modaks cannot help, didn't know about BJ's in Brisbane, will ring them tomorrow. Hichcock's it yet to be explored as thier listing does not show the nut. May have to make one yet (I checked my lathe and it can do 26tpi).
Do you know what angle the BSC threads are please?
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The Classic Biker Bar / Re: Locknut
« Last post by R on March 15, 2025, 06:13:14 PM »
Somehow missed this post, or would have replied sooner.

Modaks in Melbourne or BJs in Brisbane are likely places.
Both have extensive stocks of everything, and a longtime history with RE.
Modaks are mail order only these days, I understand.

Hitchcocks in the UK are pretty good too.
And postage is not too bad on small light items, sent economy airmail.
Can be quicker than internal aussie post !!
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British Bikes / Re: What is this?
« Last post by ramwing7 on March 12, 2025, 06:06:50 PM »
It's already hanging on a nail.  It's such a nice piece of brass, that I hate to assign it that fate.  I'll take another lap or two before I hang it up again.
Thanks to all.
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British Bikes / Re: What is this?
« Last post by Rex on March 09, 2025, 10:20:02 AM »
I can't enlarge the pic to see the detail, but it looks like a rear hub brake spindle brace (I don't know if S7's used this) or part of the rubber engine mounting assembly?
Probably wrong on both counts though ;)
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British Bikes / Re: What is this?
« Last post by cardan on March 09, 2025, 08:07:19 AM »
The big hole is about 1/2" - pretty big for a bracket on a bike - so maybe do a lap of the bike with the mystery part offering it up anywhere there is a 1/2" nut! Then hang it on a a nail on the shed wall.

How about a pic of the bike?

Leon

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The Classic Biker Bar / Locknut
« Last post by murdo on March 09, 2025, 06:30:18 AM »
Anybody have any suggestions on where to buy a 1"x26tpi nut in Australia please. Need one for my RE model G2.
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British Bikes / Re: What is this?
« Last post by ramwing7 on March 08, 2025, 09:37:30 PM »
OK.  Obviously it's vital.   ;D
I'm suspecting it's holding a cable or wire somewhere.
I'm sure I'll spend hours trying to find where (NOT!).
The old stuff is definitely fun.  At least they have parts I can lose, which is more than I can say for newer stuff.
Must be why I have so many of the darned things.   ::)
Well, it's black now.  I have yet to find any other color anywhere else.  But, you never know.  75 years is quite a while for a motorsicle to stay unsullied.
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