high compression piston

[goldrims04]

has anyone put in the weisco 12.1 piston i would like to hear the results thanks or is it like the 06 trx they run the same piston

[MAD450r]

The 06's piston's are the same as the bike's. Our 04's run strong with 12:1, 12.25:1 [but I heard some bad about the hammerhead pistons]. As for wisco that I have yet to see one up close.
When my warrenty is up i'll be doing my engine. im going to have dasa port my head then i'll be looking into 12:1 piston myself. I hope they make Ross for the R. I am really happy with the one in my 416.