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  1. #1
    Commuter hits the trail.
    Join Date
    Sep 2006
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    Help with the chainline of this bicycle.

    http://www.jstraubel.com/ebike/ebike.htm

    This is a very unique bicycle, I was hoping to replicate. I contacted the owner and was given permission. However, I need help figuring out how this chainline is done. If someone could help me draw this out it would be appreciated.

  2. #2
    Senior Member
    Join Date
    Feb 2005
    Location
    Pleasanton Tx
    My Bikes
    old,older.and very old
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    1,068
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    looks like a mess--an elect. motor hub (off ebay) would be a lot easer.
    I think most of the derailers he used are for chain tensioning.Seem(to me)he ran his front sprocket to a cluster-small cog and a second chain second gog to the rear hub.this would shift as normal. the motor runs to a free wheel(he used a 5speed but a single would work)He most likely used BB cups on the jacksaft to add the freewheels.A lot of his chains and derailers could be eleminated by using an old schwinn that came with the freewheel in the BB.---sam

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