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retro drive mount

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Old 11-30-14, 12:28 PM
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retro drive mount

Does anyone know where i may find a jockey wheel mount for a retro drive function bicycle?
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Old 11-30-14, 01:12 PM
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Not sure. How does a "retro drive function bicycle" differ from other types of bicycles?
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Old 11-30-14, 04:10 PM
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Do you mean a retro-direct bike? I have only seen one and have to say that the concept is quite weird. 2 gears with low activated when you pedal backwards. If this is what you have, are you restoring or trying to recreate a modern version?
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Old 11-30-14, 06:36 PM
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If it's a retro-direct the OP has his work cut out for him. IIRC, those need a special double freewheel with one cog ratcheting in one direction and the other ratcheting in the other direction.
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Old 11-30-14, 06:44 PM
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Originally Posted by Matariki
Do you mean a retro-direct bike? I have only seen one and have to say that the concept is quite weird. 2 gears with low activated when you pedal backwards. If this is what you have, are you restoring or trying to recreate a modern version?
My parents noticed this kind of mechanism in widespread use, in China.
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Old 11-30-14, 07:51 PM
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Yes retro direct is what im looking to build. If anyone knows how to build one, i'm looking for a bracket to mount the jockey wheel to reverse the action. And actually ive been able to build a functioning retro direct pilot to prove concept using a standard bottom bracket shell and two freewheels. Any advice on where i could find a bracket to mount the jockey wheel?
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Old 11-30-14, 09:13 PM
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Originally Posted by bikingman
Yes retro direct is what im looking to build. If anyone knows how to build one, i'm looking for a bracket to mount the jockey wheel to reverse the action. And actually ive been able to build a functioning retro direct pilot to prove concept using a standard bottom bracket shell and two freewheels. Any advice on where i could find a bracket to mount the jockey wheel?
I suspect you'll probably have to fabricate one yourself.
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Old 12-01-14, 06:40 AM
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Originally Posted by JohnDThompson
I suspect you'll probably have to fabricate one yourself.
Not that tough. Sheet metal, mounts on BB. Tools: hacksaw, drill.
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Old 12-01-14, 05:37 PM
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Some pictures of your progress would be appreciated. Thanks
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Old 12-07-14, 10:21 AM
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I'll post some pictures. I do have a video of a proof of concept. I"ll post that from my phone soon
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Old 12-11-14, 10:41 AM
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Here a completed system - though can't ride bike

.be
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