Motor Bike

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  The outer padding was later removed as the sprocket could not be aligned properly with it

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  Finished Project

I wanted an easier way to travel to school and back home. Biking on harsh roads took a lot of my energy and by the time I would get to my destination I needed a minute or two to catch my breath.

What it does:

this bike can propel me up the steep hills around campus and as far as 60 miles away from my original starting point if needed.

How I built it:

I used a basic motor kit from an online retailer, along with wrenches, pliers, hammers, and a dremel.

Challenges I ran into:

1. The sprocket that attaches to the front wheel refused to center properly when tightened down. This created a number of alignment issues because, not only did this cause the chain to spin at different heights throughout the movement of the back-wheel, but the chain would also move in and out away from the bike wheel at +/- 0.5cm, which at high speeds can cause the chain to fall off. The solution was found when I removed one of the paddings for the sprocket and attached it directly to the wheel.
   

Multiple fitment challenges were encountered.

1. The throttle housing refused to attach to the handlebar, so I needed to file the inside down. At one point I torched the throttle housing to make it conform faster. Once this was done, I realized the throttle handle didn't even fit in the throttle housing. I bought a new throttle set, which did not come with a kill switch even though the description online said it had one. The new throttle handles were much nicer, but were too big for the older housing. I used the dremel and cut the new throttle handle so it could smoothly fit into the older housing.
2. The gas tank had threaded screws melded to the gas tank, so it could fit around the top bar of a bike and brackets could be attached under. An issue arose when it was realized these screws were not long enough to hold onto the top bar of my bike. To resolve this I bought Stud hexagon connectors and screws of the same size as the ones melded into the gas tank. I then attached the new screws to the gas tank, and sawed off the ends so they didn't stick out.
3. The exhaust pipe did not fit with my bike. If I decided to attach it, the bike pedals would hit the exhaust as the bike was pedaled. To rectify this problem, I used gloves, sand, and a hammer. I filled the pipe with sand until no more could be fit in. I then heated the exhaust pipe with the kitchen stove for several minutes. Quickly, I went outside, laid the pipe on a corner, and smashed the point of interest with the hammer until the exhaust conformed to the shape I needed. Then I took apart the pipe, flushed it with a hose, let it dry in the kitchen oven, and installed it. ## Accomplishments that I'm proud of I am proud that I found solutions to conform the kit to my bike.
   ## What I learned I became more familiar with the tools used in this project. I learned that tweaks may be required in systems to make them work as intended. ## What's next for Motor Bike In the future I plan on attaching safety lights to it, along with adding a better exhaust as the current came with some dents, and it does not attach perfectly.

Built With

• bolts
• dremel
• hex-bit
• metal
• wire
• wrench