Home Forums Shifter Karts cr125 piston. Reply To: cr125 piston.

Chris Reinhardt

It looks like they all cross to that 506 piston, the others must be NLA…

Usually, you order a “A” piston for a “A” cylinder, but the difference very minimal, actually .0003″ smaller on the “B” according to the manual… But there’s a .0003″ spread for each, so a small “A” piston, might be the same as a large “B” piston…

You can try ordering a 13110-KZ4-A40 and see what happens, you’ll probably get a 506…


Chris Reinhardt

CR2 Motorsports


XV Racing Products