but why? cr500 in an aluminum cr125 frame
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  1. #1
    Senior Member jckosnow's Avatar
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    sounds awesome (or crazy), but why?? I mean, a cr500 doesn't even top 300 lbs to begin with I think
    2012 TW200, 1993 KLR650, 1992 GSX750F

  2. #2
    Senior Member jckosnow's Avatar
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    oh, and they big bored it by 2mm. i guess that cr500 just felt a little slow?
    2012 TW200, 1993 KLR650, 1992 GSX750F

  3. #3
    Member crjanow's Avatar
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    mainly because the last cr500 was pretty outdated and those frames are easier to get the engine in than others. that way you get a modern chassis and a killer 500 two stroke. I have seen them in crf450r frames also.

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  5. #4
    Senior Member silverhead's Avatar
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    I can't remember what sport bike it was, but someone had put a CR500 2 stroke into a sport bike frame and posted it for sale on CL. It would have been really fun to ride I think. Something to scare you more than an old Kawasaki H2.
    1993 TW200

  6. #5
    Senior Member jckosnow's Avatar
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    Quote Originally Posted by Richie View Post
    mainly because the last cr500 was pretty outdated and those frames are easier to get the engine in than others. that way you get a modern chassis and a killer 500 two stroke. I have seen them in crf450r frames also.


    cool, thx
    2012 TW200, 1993 KLR650, 1992 GSX750F

  7. #6
    Senior Member jckosnow's Avatar
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    Quote Originally Posted by silverhead View Post
    I can't remember what sport bike it was, but someone had put a CR500 2 stroke into a sport bike frame and posted it for sale on CL. It would have been really fun to ride I think. Something to scare you more than an old Kawasaki H2.


    never heard of the h2 before---a 750cc 3cyl 2 stroke!
    2012 TW200, 1993 KLR650, 1992 GSX750F

  8. #7
    Senior Member silverhead's Avatar
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    The H2 or the H1 (500cc version) are both on my 'to get' list. I love 2 stroke stuff and street legal 2 strokes are fun. Unfortunately all I can afford are something like a Yamaha DS7 or something smaller and cheaper.



    The H2 was called the widowmaker because the frame was too flexy for the amount of power. Also the way those old 2 strokes made power, your horsepower increase was not linear. You might double your horsepower in the course of 1000 RPM range (or not) which made them really tricky to ride and hold onto when the power kicked in.



    As opposed to a Triumph Speed Triple I owned last year (gone now thanks to a big speeding ticket) that makes its power very flat and linear, like an electric motor, so it made you do horrible things at the same time as being bored because you didn't realize you were going 120mph in town.



    The H1 and H2 are not for the timid
    1993 TW200

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