Schwinn engine

Forgotten38

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Jul 16, 2020
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Was curious to see if any one had some insight as to whats the biggest size engine I can put in an 04 schwinn occ chopper before i have to start cutting up the frame. 14.5 bottom tube.
 

wheelbender6

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Sep 4, 2008
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Based on google searches, it looks like you can add a 79cc predator 4t.
The big HT 2t will also fit.
-The 212cc Predator requires frame mods.
 
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chainmaker

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Jan 19, 2010
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I had one of those frames in the basement for the longest time trying to figure something out..I remember the cranks being an issue of some sorts.. I have one of those Honda 160 that looks like it would fit in one.
 

wheelbender6

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Sep 4, 2008
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Dont get rid of the seat tube unless you plan to replace it with some steel stock of a different shape.