IntermediateIt's been a while since I've ridden a two-stroke on a motocross track, and the KTM 250 SX definitely reminded me of how flat-out fast-and fun-these bikes are. Earlier in the day I'd been doing motos on 250Fs, and when I initially hopped on the two-stroke I proceeded to over-jump nearly every double and tabletop on the track. These things have power! In the KTM's case, the engine comes alive not with what I would describe as a hit but more with a surge; the low-to-mid-range delivery is incredibly strong but surprisingly useable. In fact, this RPM range was my favorite place to ride this bike, as venturing into the top end produces enough vibration to register on my internal Richter scale as "hazardous to dental work." Sure, you'll get this with any 250cc two-stroke, but why wring the bike out and rattle yourself to high heaven when you can just short-shift the bike and ride the useable wave of low-range meat? That's my thinking, anyway. Beyond the motor, this KTM feels extremely lightweight, yet it somehow still manages to get most of the power to the ground so long as you're in the ballpark of the right gear. It turns consistently well and handles chop decently, though I felt some kicking in the rear end that I couldn't quite adjust out with the rebound; I think I'm too light for the shock's spring rate. The fork springs were great for my weight but didn't quite work in sync with the rest of the motorcycle, causing the overall handling to suffer a tad. Nevertheless, I enjoyed playing around on this machine and came back to the truck with a huge (and, I'm happy to report, toothy) grin.