No, they're fantastic trikes. They're a little heavy because of the shaft drive so that slows them down a bit, but I still rode the hell out of mine. It's what I learned on. As to the 250SX comment, I respectfully disagree. I rode them back to back and enjoyed the handling of the DX much more, though I did notice a little more power in the SX. The handling difference, however, could be attributed to the tire setup on the SX. Not sure if the rears were stockers or not, but I didn't like them. The SX just seemed to have a higher center of gravity. Whether that's mathematically true or not, I don't know.
It ain't no fun unless you kin git hurt doin it.
Rides: YTM-225DX, 2x YTM-175, KLT-160, ATC-125M, ATC-250SX, ATC-200x, ATC-200E