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Old 11-19-2008, 11:08 AM
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Ghost0 Ghost0 is offline
Motorized Bicycle Elite Member
Join Date: Mar 2008
Location: Bellingham, WA
Posts: 764
Default Re: Geared it to the moon

You do not need to move the jackshaft sprocket because the one that is being changed is the one that drives the rear gears. He may actually be able to swap the two inner chainrings and put on the front derailleur and be able to shift front chainrings on the fly.
Design is easy, execution the hard part.
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