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DIY Home Built Motorized Bicycle (non kit) Post all about your home built rides here. Weedwacker motors, lawn mower engines ect. This area is for non kit builds

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  #1  
Old 07-30-2008, 10:04 AM
jonboy2five jonboy2five is offline
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Question ready (???) to put plan into action!

ok you guys here is my plan: 24" bmx cruiser + 41cc mitsubishi + homemade rack mount + 6 tooth pinion gear on centrifugal clutch w/3rd bearing support + 98 tooth sprocket on rear hub....16 1/3 to 1 gearing @ 7000 rpm = 30.59 mph top speed with a 22mph cruise...does that sound about right to motor around the neighborhood? any problems you see with that setup?
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  #2  
Old 07-30-2008, 07:37 PM
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deacon deacon is offline
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Default Re: ready (???) to put plan into action!

Frankly I'm not smart enough to comment but try it and let us know how it goes.
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Old 07-30-2008, 09:20 PM
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Bikeguy Joe Bikeguy Joe is offline
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Default Re: ready (???) to put plan into action!

That sounds like a fun set of numbers to me! Plenty fast enough fo'sho'.
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Old 07-31-2008, 09:32 AM
jonboy2five jonboy2five is offline
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Default Re: ready (???) to put plan into action!

thanks guys i just thought of a possible issue...clearance of the (big) rear sprocket. we''ll see if it works. i would love NOT to have a gearbox...
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Old 07-31-2008, 11:27 AM
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spad4me spad4me is offline
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Default Re: ready (???) to put plan into action!

Quote:
Originally Posted by jonboy2five View Post
ok you guys here is my plan: 24" bmx cruiser + 41cc mitsubishi + homemade rack mount + 6 tooth pinion gear on centrifugal clutch w/3rd bearing support + 98 tooth sprocket on rear hub....16 1/3 to 1 gearing @ 7000 rpm = 30.59 mph top speed with a 22mph cruise...does that sound about right to motor around the neighborhood? any problems you see with that setup?

Kinda sounds like a gebe clone with a chain.

NICE.
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  #6  
Old 08-08-2008, 08:07 AM
jonboy2five jonboy2five is offline
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Location: spring tx horth suburb of houston
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Default Re: ready (???) to put plan into action!

i like the sound of "gebe clone with chain" as my new motor was $85 and the parts to install it are about $90...how much for a GEBE setup with motor? huh? HUH?
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