For now I just want to stick to the stock engine because the piston and sleeve are perfect with hardly any use. When they wear out I will upgrade the engine.

Upon closer inspection it appears that the rod broke due to a defect. The groove milled down one side to reduce weight was cut too long and came too close to the bottom. The crack starts right where the groove ends.

If I show CEN the part and prove that the ATX is only a few weeks old do you guys think they will send me a new connecting rod?