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dirtynorseman 06-07-14 01:53 PM

Schwinn Twinn Crank Problem
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Greetings all,

I picked up an older 1967 Schwinn Twinn Tandem I have been working on restoring to make it rideable again. I ran into a problem with the rear crank. The pedal on the right side was cross threaded in the crank. I was able to get the peddle off but not sure what my options are for fixing/replacing the crank.

There are a couple on fleabay but they are pushing 75-100 each. Does anyone know if a crank from an old Huffy tandem could be used? Would a crank off a different Schwinn model fit?

Any information or suggestions would be greatly appreciated.


noglider 06-07-14 03:03 PM

Good news. If there is enough metal remaining, your bike shop can run a tap through and fix the threads. If there isn't, there is a helix you can put in. You would bore out the hole and tap a larger thread. Screw the helix in. The inside of the helix has a standard pedal thread.

dirtynorseman 06-07-14 03:43 PM

Thanks for the fast reply. Good to know there is still hope.

sailorbenjamin 06-07-14 06:28 PM

And yes, that is a standard size crank so any one piece crank will fit. The Schwinn ones are better looking, though.
You have a Huffy tandem, too? I've got a huffy and a Schwinn.

dirtynorseman 06-08-14 03:56 PM

I don't have a huffy, just the schwinn. I saw a crank for a huffy tandem for sale that was much cheaper than the schwinn tandem crank and wasn't sure if it would work on a schwinn or not. Again thanks for all the help.

sailorbenjamin 06-08-14 04:03 PM

I don't think it even has to be for a tandem. The gears are removable, you swap those out. That's the semi unique tandem bit.

dirtynorseman 06-11-14 08:31 PM

1 Attachment(s)
Got the peddle threads all straightened out and took its maiden voyage to the local DQ tonight. Thanks again for the advice and info.

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