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Fully electric powered monster chopper bike with whopping four-foot forks. An integrated hub-motor and battery packs concealed within the fork make t...
The key ingredient: The Zappy integrated hub-motor. this is the gizmo that inspired and made this project possible! it's an entire 250W electric mo...
We'll also need a donor bike, if you'll ever want to pedal it use a mountain bike with low gears because this thing is heavy when we're done. Batteri...
You'll need: MIG welder, hacksaw, angle grinder, drill.
the dropout is what holds the axle of the wheel. since this is a powered wheel, the axle of the wheel has flats that must tightly fit the dropout to ...
in order to get the forks well aligned, make a jig to hold everything straight and square while you weld. the dropouts in particular must be welded a...
big choppers put a lot of strain on the headset, you need to make a big clamp to keep everything together. the clamp will slide on over the forks an...
should be able to use the original headset from the bike, put it all between the two steel plates, check that everything seems to work mechanically. ...
the batteries go inside the fork tubes! 15 D-cells in each tube. - wrap each D-cell with electrical tape or shrink-wrap, they will be jiggling aroun...
slide everything in, keeping track of which is the (+) and (-) end of each tube! after everything is in, you can mount the headset back together.
we've kind of made a mess of our Zappy electronic speed control, yours will look a lot nicer than this. we just stuck it on the fork with a big mess ...
almost done! mount the hub-motor-wheel to the fork.
oh yeah! now just apply flaming paint job! that will stop the rusting. mods: add a couple more D-cells to 'overclock' the motor, and a banana seat ...
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Posted:Jul 31, 2006
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