Tandem Cotter Pin Crankset

[light edded]

Rear crank needed. Its a really unusually long shaft

 

[hamster]

Left or right?

 

[keithglos]

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

 

[light edded]

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.

 

[keithglos]

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

 

[light edded]

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

 

[hamster]

Try ebay or similar, there are a fair few around secondhand, but not new.

 

[keithglos]

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.

 

[light edded]

ive just got the frame, forks, headset, and front bb. the rear bb is unusually long. have tried ebay but nothing

 

[hamster]

You need a BB to match your cranks. So if you have not bought any yet, hold off.