I had heard reports in the past that Can Am TNT 250s made great usable power , but that they didn't handle that well & were a bit on the heavy side . After reading some of the thread on the Cheney TM400 that was for sale on ebay recently , I got to wondering if Eric Cheney ever built a frame for the Can Am Rotax motor & running gear . It would have made a formidable combination if he did .