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Eliminating the driven sprocket


Discussion at Motorized Bicycle Engine Kit Forum in the Mounting Techniques forum. Here's what my business partner and I have been working on:...
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Old 03-07-2008, 05:00 PM
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Default Eliminating the driven sprocket

Here's what my business partner and I have been working on:




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Old 03-07-2008, 05:14 PM
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Default Re: Eliminating the driven sprocket




We will be selling this set-up as a kit sometime in spring.

We are still refining it, working a few logistics issues. Sourcing the big dollar item the crankset is complete just need to settle on volume.

This is a commercial enterprise. Well OK we are a couple of clowns. He's the engineering muscle. I'm the the guy with a headache.

I'm open to your thoughts.
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Old 03-07-2008, 05:30 PM
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Default Re: Eliminating the driven sprocket

That is a really cool setup. So I guess you can still shift the gears on the wheel sprocket..............
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Old 03-07-2008, 05:40 PM
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Default Re: Eliminating the driven sprocket

Man that is way past anything I could do myself it looks great. any idea what the cost will be on that thing.
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Old 03-07-2008, 05:40 PM
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Default Re: Eliminating the driven sprocket

Does the crank freewheel, or do the pedals spin at engine speed.
How do you start it
This looks like a nice setup if the ratios on the crank are different enough.
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Old 03-07-2008, 06:23 PM
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Default Re: Eliminating the driven sprocket

The crank freewheels. Starting it is just like before except you can't use your inertia from your forward momentum to start it. When you peddle with the clutch out your cranking the motor over directly. Makes it a little harder to start but not much.
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Old 03-07-2008, 06:29 PM
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Default Re: Eliminating the driven sprocket

Welcome Mr. Ghost0!!

You beat me to it. Yes the ratios are nice and having gears adds a whole new dimension to your bike. Ghost0 doesn't even throttle down when he shifts
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Old 03-07-2008, 07:06 PM
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Default Re: Eliminating the driven sprocket

ah i see you got your partner on board. Glad to have you any friend of pablos is a friend of ours.
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Old 03-07-2008, 07:12 PM
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Default Re: Eliminating the driven sprocket

That thing looks absofrigginlootely awesome!
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Old 03-07-2008, 08:01 PM
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Default Re: Eliminating the driven sprocket

does it make the bike go faster
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