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The pitbike was a product of circumstance and curiosity. The quality of the metal and craftsmanship from some of the parts makers in china were finally getting good enough to entertain a build up. Ebay proved to be flooded with parts from all price ranges. I wondered just how strong and light you can make a pitbike by mail order. The answer; 118lbs, fast enough to wheelie in 1st-4th and donut all over the place!
I started off with an all aluminum frame and swingarm. This stamped and welded version looked to be of the stronger availabe, especially at the neck, and has proved to take all kinds of abuse.
The swingarm was a direct fit with good quality bearings. Total cost of around $140
I found a take off set of SSR rebound adjustable inverted forks with 1" handlebar risers and mounted them to the frame with a quality tapered bearing set.
I equipped the forks with Renthal full size aluminum handlebars and grips. The tank which also came with the petcock, chain and aluminum skidplate were all an easy bolt on .
The front wave rotor, caliper, hydraulic brake and clutch cable were all readily available but came in a few different size options. A couple purchases worked this out .
I chose a Zongshen 125cc engine for this little 50 clone. The engine revs freely and has a ton of bottome end.
The final product is a blast to ride and feels very stable for such a small bike.
Later, I swapped for black plastics...
With a much beter triple adjustable shock:
I also built a second Fox clone using a donor I picked up.
The second Fox clone was for a younger rider, and really didnt need any more powwer than an 88cc kit.
After a bit or reworking, it came out like this:
The both of them are light enough to throw on the back of the jeep, no problem.
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