Help with first electric project

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J.S.@SMS

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I am planning my first electric project and I need some help. I typically focus on gasoline engines, so my knowledge about electric motors and wiring is lacking.

Here's what I'm thinking. A small minibike with a powerful enough motor to have fun sneaking around the woods at around 25mph. I also want to have a good amount of run time on a single charge. And I would like to have a simple wiring setup if possible.

I am thinking about converting an alternator into a motor, but I am not sure if this is the best option. I am also on a budget, so I would like to keep this as cheap as possible.

I would appreciate any advice or recommendations.

PS, I'm fine with a thumb or twist throttle. I have experience with both.
 

Quinc

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If you going up any hills you are going to want the smallest motor sprocket you can get and the largest wheel sprocket. Go with #35 chain if you plan on abusing it at all. I had #25 on my mini bike and it would break every few rides..

For longest ride time you will want to go with brushless. ebay 48v 1800w brushless motor and buy the kit with twist throttle and controller.
Ebay 4x 12v 22ah batteries If you search long enough you can find them for less than 30$ each
Pick up a roll of 8ga wire and connectors.

Motor sprockets:
https://www.surpluscenter.com/
 

J.S.@SMS

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Thanks, I have found the batteries and the wire. However on the motors that I'm finding there are TF8 sprockets. Which chain are these sprockets compatible with, and can it handle off roading?
 

Quinc

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TF8 is 8mm chain. If you want to go with something specific http://www.rebelgears.com/ will make you anything you want. Or maybe you can get a "better" quality of 8mm chain with higher tinsel strength.
 
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