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Old 04-26-2008, 08:12 PM
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Chainsaw Powered Bicycle

Ok I have a 38cc 4.0 Horsepower Poulan WoodShark Motor that I plan on mounting to a Bicycle. I have welded a 17 tooth sprocket that runs to a 45 tooth sprocket. Do anybody think this gearing would allow the motor to move someone who weighs 180 ? What sppeds do you think it would be capable of ?. Thanks Any suggestions Appreciated.

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Old 04-26-2008, 08:12 PM
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VROOOM !!!!!!
 

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Chainsaw Powered Bicycle

Ok I have a 38cc 4.0 Horsepower Poulan WoodShark Motor that I plan on mounting to a Bicycle. I have welded a 17 tooth sprocket that runs to a 45 tooth sprocket. Do anybody think this gearing would allow the motor to move someone who weighs 180 ? What speeds do you think it would be capable of ?. Thanks Any suggestions Appreciated.
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Old 04-26-2008, 08:33 PM
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need more info please, what is the rpm specs on the motor and what size wheel?
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Old 04-26-2008, 08:36 PM
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Specs

4.0 Horsepower The cluth Releases at 3000 rpm the max rpm is 8 - 10000 The Wheel Size is 20 inches and the total weight is 200 pounds
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Old 04-26-2008, 08:43 PM
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Go to <www.motoredbikes.com>
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Old 04-26-2008, 09:17 PM
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It looks like your setup will pull 225mph I think your going to need to re think some gear ratios lol http://www.diygokarts.com/speed-calculator.html One thing I would consider is a rear Derailleur, maybe off a mountain bike. Depending on the Derailleur and wheel you could have a 3-9 speed chainsaw powered bike. That would be pretty sweet.

Jordon
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Old 04-26-2008, 11:52 PM
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That would be Ok for the jack shaft gearing..Look up whizzer motor bikes..Another thing that was done was to drive a small wheel attached to the jack shaft which then set on the main wheel and dove it..those bikes would get up to about 15-20mph as I recall..More of a bicycle with a motor assist for when you are tired of pedaling..The whizzer bikes had a belt driven pulley which ws nearly as big as the rear wheel..

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