Need advice on '01 CR125 to avoid "Death Rattle"

[500 dirtrider]

I have my son's "01 CR125 torn down, the cylinder is ball honed and ready to go. I haven't purchased a piston yet and have heard conflicting suggestions. I have a B cylinder and it has a few miles on it. What is the way to go, factory B, Wiseco, Vertex, ProX? I'm thinking because of the wear going with a stock B since the aftermarkets only make 1 size fits all...this has to mean that it will fit an A cylinder also. This would have to translate to a small diameter and a loose fit. What do you think?

 

[viking20]

Just put a Vertex in my sons 125 cr,only run it on the stand so far,so I cant give you any riding impressions yet.The feel of the piston and cylinder in the hands during assembly is of a tighter fit.If I remember correct,you can see the sizes of Vertex pistons on Sudcos website.If my memory is playing tricks on me,do a search for cr 125 Vertex.Not only DRN people rely on other pistons than oem for these bikes.My local Honda dealer told me he uses Wiseco or Vertex instead of OEM!