I know a lot of us xmoto guys jump over here every now and then for some info while doing our own research. Well i just thought i'd share that one of the supermotojunkie members is working on a 720cc xmoto. rotax has a 650 motor in one of the can-am atv's and the piston is a direct swap to the g650. http://www.supermotojunkie.com/showthread.php?137998-Oh-yes-Big-bore theres the thread. any of you other 650 single guys are welcome to join us over there. the main reason i'm never on here is because its just way too crowded. cheers.