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PostPosted: Tue Jul 30, 2013 1:25 pm 
Newbie

Joined: Sun Jul 07, 2013 9:51 pm
Posts: 5
Rear crank needed. Its a really unusually long shaft


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PostPosted: Tue Jul 30, 2013 2:37 pm 
Old School Grand Master

Joined: Tue Oct 09, 2007 1:55 pm
Posts: 8204
Location: New Forest, UK
Left or right?


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PostPosted: Tue Jul 30, 2013 3:55 pm 
Retro Guru

Joined: Sun Aug 22, 2010 7:07 pm
Posts: 1321
Location: Cotswolds
Pictures could help. Is it a traditional retro tandem? Could have the drive chains on the same side or crossover. I always ran ours with the drive straight through from the front.
Or do you mean you want the long axle?
Keith


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PostPosted: Tue Jul 30, 2013 9:50 pm 
Newbie

Joined: Sun Jul 07, 2013 9:51 pm
Posts: 5
its one of these. I need to find a double cotter pin crankset for the rear. or if thats not going to happen i need to have 1 crank on the left, front and back and a second on the right at the rear.

Image


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PostPosted: Tue Jul 30, 2013 10:31 pm 
Retro Guru

Joined: Sun Aug 22, 2010 7:07 pm
Posts: 1321
Location: Cotswolds
From what I can see you have a classy competition tandem, early post war, with Chater-Lea tandem chainset. The right rear crank was a standard CL crank with an alloy adaptor to carry the inner ring. What is the problem or the breakage? Perhaps a close up pic could help.
Keith


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PostPosted: Wed Jul 31, 2013 2:22 pm 
Newbie

Joined: Sun Jul 07, 2013 9:51 pm
Posts: 5
Hi there. The problem im having is finding such a crank set. My local bike shop tell me there made of pure unobtainium. very frustrating


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PostPosted: Wed Jul 31, 2013 3:32 pm 
Old School Grand Master

Joined: Tue Oct 09, 2007 1:55 pm
Posts: 8204
Location: New Forest, UK
Try ebay or similar, there are a fair few around secondhand, but not new.


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PostPosted: Wed Jul 31, 2013 3:46 pm 
Retro Guru

Joined: Sun Aug 22, 2010 7:07 pm
Posts: 1321
Location: Cotswolds
I assumed the picture was of your own problem. Could you show us what you actually have, so that we can perhaps offer some help.


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PostPosted: Fri Aug 02, 2013 4:43 pm 
Newbie

Joined: Sun Jul 07, 2013 9:51 pm
Posts: 5
ive just got the frame, forks, headset, and front bb. the rear bb is unusually long. have tried ebay but nothing


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PostPosted: Fri Aug 02, 2013 8:12 pm 
Old School Grand Master

Joined: Tue Oct 09, 2007 1:55 pm
Posts: 8204
Location: New Forest, UK
You need a BB to match your cranks. So if you have not bought any yet, hold off.


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