Hi Everyone,
I've always wanted to build a motorized board track bike and now I finally completed mine. I started with a womans Huffy moutain bike that I got off of craigslist for 5 dollars and then proceeded with the surgery...I bought the 80cc motor kit off of ebay. The only thing thats the original Huffy parts are both the rear stays, seat stays, seat tube, BB, and head tube. Everything else I fabricated, modified used bike parts and had my friend, Mark, help me weld them up. The paint is all rattle canned and I used sand paper, steel wool and a wire brush to scuff it all up. Thanks again for all your inspirations and great bikes on this site! Click on the images to enlarge
The donor bike
Took all the parts off and stripping the paint
Cutting the top tube off
Cutting templates for the new top tubes and gas tank
Got the top tubes welded on and made my seat
Parts to make the front fork stay assembly
Eyeing up the motor
Tank all welded and grinded up
Rattle can painting the wheels and tank
Tank all done
Made a template for the new downtube and rough idea of how the motor might sit
Bending the new downtube
Made the choke assembly out of a ruler
In Minnesota, motorized bikes are considered mopeds so there has to be a license plate on it. So I mounted my on the rear folding kickstand.
You only see the plate when the kickstand is up.
Well, except for some minor adjustments, I can't wait to get the motor broken in and see how fast it will go!
Thanks, Kevin
I've always wanted to build a motorized board track bike and now I finally completed mine. I started with a womans Huffy moutain bike that I got off of craigslist for 5 dollars and then proceeded with the surgery...I bought the 80cc motor kit off of ebay. The only thing thats the original Huffy parts are both the rear stays, seat stays, seat tube, BB, and head tube. Everything else I fabricated, modified used bike parts and had my friend, Mark, help me weld them up. The paint is all rattle canned and I used sand paper, steel wool and a wire brush to scuff it all up. Thanks again for all your inspirations and great bikes on this site! Click on the images to enlarge
![](https://proxy.imagearchive.com/b98/b98f17129d622c709a357585df771575.jpg)
The donor bike
![](https://proxy.imagearchive.com/709/709d60ddd2a53c505e31ac7dfc154fc0.jpg)
Took all the parts off and stripping the paint
![](https://proxy.imagearchive.com/d71/d71d72918fee3ec667c418a0ea979e17.jpg)
Cutting the top tube off
![](https://proxy.imagearchive.com/fe3/fe3fd4350ef30720e1bac53f875ed353.jpg)
Cutting templates for the new top tubes and gas tank
![](https://proxy.imagearchive.com/95b/95b2e2d39f2f716f63bf9dc32d8a3e78.jpg)
Got the top tubes welded on and made my seat
![](https://proxy.imagearchive.com/e9e/e9e923aa20d39fabb8606962f32b4736.jpg)
Parts to make the front fork stay assembly
![](https://proxy.imagearchive.com/955/955499bc843f9fdabdc052ea2c9ffcdb.jpg)
![](https://proxy.imagearchive.com/411/411a54b3f00c21b6f4b3eb08e7e54cef.jpg)
Eyeing up the motor
![](https://proxy.imagearchive.com/042/042ac50eb22e969de799c136ce50acd0.jpg)
Tank all welded and grinded up
![](https://proxy.imagearchive.com/ac4/ac49d071fe90689bb2214643c905191f.jpg)
Rattle can painting the wheels and tank
![](https://proxy.imagearchive.com/3fd/3fd8d6a4ca7c574397a31f9fc0ca828c.jpg)
Tank all done
![](https://proxy.imagearchive.com/e98/e98644ddbbcef1d7fa75bd75867a1636.jpg)
Made a template for the new downtube and rough idea of how the motor might sit
![](https://proxy.imagearchive.com/170/170a812cb04cad67f6042079cfd4f04a.jpg)
Bending the new downtube
![](https://proxy.imagearchive.com/ee2/ee2c2eed159019b20f04aafcbf9823a8.jpg)
Made the choke assembly out of a ruler
![](https://proxy.imagearchive.com/a7a/a7a444c5363a42ae973329a6abe69e2d.jpg)
![](https://proxy.imagearchive.com/605/605b95fb4e8ab2069531751368a6f35d.jpg)
In Minnesota, motorized bikes are considered mopeds so there has to be a license plate on it. So I mounted my on the rear folding kickstand.
![](https://proxy.imagearchive.com/9d9/9d9a9e65e0b511593d7f16bf85324c7f.jpg)
You only see the plate when the kickstand is up.
Well, except for some minor adjustments, I can't wait to get the motor broken in and see how fast it will go!
Thanks, Kevin