XB-700LI too slow, so I am adding a chain drive motor (Work in progress)

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ninelime
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Last seen: 3 years 10 months ago
Joined: Sunday, September 19, 2010 - 21:16
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XB-700LI too slow, so I am adding a chain drive motor (Work in progress)

I haven't really tried this out yet, but I am running this 24v 500w motor at 48v inside of the battery compartment of my xb-700li. The battery fits fine under the seat without the box around it. I used bolts and JB weld to attach the two sprockets to the existing one, it's a little wobbly but not bad. I tested this at 24v while on it's side and it sure does get the wheel spinning fast.

It is geared pretty high with a bmx front sprocket and longer chain, and I know that if I have no forward momentum it will put a lot of stress on the motor, so I will first test it while moving at the full speed of the hub motor (20mph). I am using a push button switch to enable the motor on the handlebars. Higher top speed?IMG_20121210_183154.jpg

The motor is rated for 2600RPM at 24v. This motor has 300 miles on it from my old scooter running at 36v. I may just throw 3 big 12v batteries in here and run it at that voltage to keep it from burning out.

ninelime
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Last seen: 3 years 10 months ago
Joined: Sunday, September 19, 2010 - 21:16
Points: 35
Re: XB-700LI too slow, so I am adding a chain drive motor ...

The scooter is barely sped up by this mod. Oh well. I rode it 2 miles and it shut off even with the new LIPO4 battery.

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