Cranbrook Build #1

While window shopping on Amazon I stumbled upon this kit. "80cc two-stroke motorized bicycle conversion" it read. I IMMEDIATELY was sold. I thought back to my childhood. "If ONLY i could have an engine on my bicycle!" every kids dream. So, admittedly foolish, I purchased it with no further research.

BUILD ONE. impulse buy.

The engine promptly came in the mail and I was left to find a bicycle. Being more of a do-er and less of a thinker, rather than looking for a community of Motored Bike builders, I set forth to my neighborhood Walmart with a crisp Benjamin in my pocket looking for a cheap cruiser.

What I found was the Cranbrook.. $80. SOLD.

Still in go-mode, I rushed home with my bicycle, opened my box-o-parts and started slapping them on in the most logical order i could dream of (Of course without taking photos). By the time the sun set I had a vanilla cranbrook with my engine kit mounted and running.
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IT WORKS. Start to finish, I was "done" in about 6 hours. I rode it a few times and was happy with it. But something felt like it was missing. It seemed to "Out of the Box". i had not personally selected anything but the handlebars on this bike. It was not my own.

SO... like I do with everything else, I started trying to fix things that weren't broken.

I decided i did not like the plastic throttle that came with the kit and decided that it needed something a bit beefier. I purchased a generic aluminum motorcycle twist throttle. and some comfy Oury grips that would soon match the leather saddle I had in mind. Unfortunately the stock throttle cable did not like the new assembly as much as I did, so I had to go with one from a Honda XR-70 .
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A few more rides in I decided that the OEM Huffy rear wheel was not built to the quality that I vainly imagined I required. I had problems with the hub locking up and the bearing races trying to back themselfs out at high RPMS. At this point I began to regret starting the entire project with a Walmart bike as the base, But I had passed the point of no return. I will make it work.

The next upgrade was a chrome rear wheel with a Shimano coaster-brake hub. ( I soon look forward to ditching the red front one for a match to this)
I also added a Bi-pod kickstand

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At this point, I have a vision. I know the aesthetic that id like the bike to take once its finished. All that i need is time a materials.

THINGS TO COME
*Custom front springer (indian style)
*Leather saddle
*Chrome front wheel
*Custom fabricated mounting brackets welded to frame
*Lowered rear end
*Stainless gas tank to fit in frame. (in the works)
*static mounted bipod kickstand ( Ditch the bolt on.)
* NO MORE RED. ADD MORE CHROME. haha

TO BE CONTINUED....:geek:
 
I like your style, in particular your handlebars. I like them low!

Thanks Timbone! i am on the fence about the bars. I do like the low bars, but I think I will go with something a bit different.

Is it just me or are upside down handlebars kind of cheesey?
 
WEEK 2 OF BUILD: Broken studs for all.

Today i went out to tinker with the bike; Tighten bolts, wiggle wiggly things, fantasize about how it SHOULD look.

I found something quite unfortunate. One of the Studs on my lower mount has shear right at the casting. JOY:-/:-/:-/ I was showing my buddy (who is also building a bike) my problem and he discovered he ALSO had sheared a stud, but on the upper mount.

Looks like I will have some extracting to do tomorrow at work.
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Here is our sad pile of engine. One step forward 2 steps back
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The Squad
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Idea: if you cannot successfully removed the sheared stud, drill another hole in the area above or below that damaged area, maybe going with a slightly bigger tap, say, a 1/4"-20. Then you can bolt both studs into a mounting plate and pull that tight with a hefty u-bolt to the seattube.

I think the style in motorcycle populism is the small, cafe racer inspired motorcycle so flat or flipped bars are very cool right now.
 
Broken Stud Extraction

I ended up taking my engine to work to try to get the broken stud out. I just had to put a little ball of weld right on the top of the broken stud and back it out with some pliers. it works surprisingly well
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Then it was time to take to the plasma table and design a better motor mount, to prevent this from happening in the future
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