Will this frame fit a 4 stroke

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flatracker

New Member
Sep 5, 2009
2
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Wasnington state
Would prefer a 4 stroke engine, but not sure if it will fit into this Schwinn mountain bike frame. The frame is all steel which helps.

New on this site so any info will help. Raced and built motorcycles for years, both 2 strokes and large twin flatrackers, but cant seem to find the dimensions on the engines. Looks like it would be a tight fit but really like the frame.

cliff
 

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ocscully

New Member
Jan 6, 2008
373
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Orange County, CA
Here is a link to a pdf of the install manual from bicycle-engines .com page #3 has the info on how to determine weather or not their kit will fit your frame. http://www.bicycle-engines.com/4-Stroke-Manual.pdf When I was first looking for a bike to install a 4-stroke kit in I made a 10" X 10" cardboard square. If you can fit this square generally upright into the front triangle then the 50cc 4-stroke kits will fit.

ocscully
 
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