adub24

Member
Sep 19, 2008
13
0
I have the athena 144 for a yz 125. I am trying to order the piston kit and it shows 2 sizes 57.94 or 57.95 . I spoke with an online tech they told me either would work with no changing of the cylinder they are both bolt on and go . I have no cylinder damage I just need a new top end which one should I get?
 

Rich Rohrich

Moderator / BioHazard
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Jul 27, 1999
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Measure the bore, then you'll know without guessing.
 
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