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PostPosted: Sun Mar 08, 2009 9:07 pm 
MacRetro rider
MacRetro rider
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Joined: Fri Mar 09, 2007 2:11 pm
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Location: DUNDEE
I have an old atom hub on my claude butler.
Can anyone tell me about the brand?
The hub is strange in that it has a set of threads on the non drive side - what are they for?

thanks in advance


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PostPosted: Sun Mar 08, 2009 9:16 pm 
Old School Grand Master
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Joined: Thu Jul 19, 2007 7:18 pm
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Location: Staffordshire
Don't know. Could hazard a guess that if it is VERY old, a rider could have a larger sprocket that he could use by flipping the wheel around at the bottom of the climb? Long winded, but when there was no support allowed in racing?


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PostPosted: Sun Mar 08, 2009 10:25 pm 
The Guv'nor
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could be for different gearing. one side could be fixed and the other have a freewheel.


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PostPosted: Sun Mar 08, 2009 10:32 pm 
MacRetro rider
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I reckon it is 80's, never thought of optional gearing or even one side fixed. Probably right - I'll try and get a pic during the week.

I thought I'd get a definate answer within minutes as my road knowledge is almost zero. I thought it might be for a disc brake or some tandem related device, although it doesn't look heavy duty enough for tandem use.


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PostPosted: Mon Mar 09, 2009 6:54 am 
Old School Hero
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Joined: Sun Aug 10, 2008 6:19 pm
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Location: Bristol, England
The Ken wrote:
a set of threads


is it one thread or two? if the outer section is smaller diameter & threaded anti-clockwise, that's so you can run a fixed gear, the lock ring threads on the opposite direction to keep it tight. Many riders used to to train or commute fixed & save the gears for competition. Try fixed, it's only going to cost you a cog & lock ring; great fun!


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 Post subject: Fixed threads
PostPosted: Mon Mar 09, 2009 1:51 pm 
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Joined: Mon Feb 23, 2009 12:06 am
Posts: 7
Location: London
That is almost certainly what the threads on the NDS are, it's a multipurpose hub. I have the exact same arrangement on a 5sp wheel from a '61 claud butler. BITD you could ride geared bike to your fixed TT, turn the wheel around, compete, then ride home a again with gears. This is quite commonly seen on vintage hubs.

I walked into a famous east london HHSB DayGlo Fixie' shop a little while ago whislt using the fixed side, with the old 5sp freewheel still on the there, and the proprieter looked very confused. Bless


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