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99 cr250 top end

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everyone is going to have their own favorite pistons, and some that they don't like.. But me personally I have always ran Pro-X pistons in all of my 2 strokes, And I ride all MX and ride my bikes really hard. I have never had a problem with Pro-X.  But that is my opinion. 

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Namura............ I had to.........

 

 

 

I run oem but thats not to say others will not work.

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I put wiseco in my bike and love it! But I will probably go stock next time around. I read on here that the stock piston is softer then the cylinder walls. The wiseco is harder according to him. I'm going to do a lot more homework to confirm this and if it is indeed true I'm going the stock route and that is my reasoning on why. I would rather have my cylinder walls as my stronger link. Also I'm fully aware that in a catastrophic failure my cylinder will be toast.

Chris

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