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Some might say that two-stroke dirt bikes are dead and buried, but KTM says “Not Yet!” to that and offers a great model to back up their affirmation – the 2009 KTM 250 SX. This bike is keen on providing the demanding two-stroke crowd with loads of torque, defining a unique powerband as well as sound and smell, all contributing to the unmistakable riding experience.
IntroductionBecause we’re talking about old technology here, there isn’t much to improve, but definitely everything to enjoy. The two-stroke engine is the one providing all the satisfaction and in this case we’re talking about a liquid-cooled 249 cc, single-cylinder unit featuring TVC power valve. The Keihin PWK 36 S AG carburetor needs to do double the work than in the case of four-stroke engines as two-strokes provide a bang each time the piston reaches its highest traveling point so that’s basically a bulletproof unit right there. Two-stroke engines are usually kick started and this one makes no exception. The rider would have to go through the choke pulling and lever actuating routine without forgetting to open the throttle a little bit in order to ensure quick starts each and every time. All this adds a certain something to the bike’s unique character and at it being carried on as a new model year.  2009 KTM 250 SX While the engine isn’t the latest thing in the domain, the chassis is. In fact, we’re looking at a 2009 SX-F chassis on which another engine was mounted for greater rider excitement. The frame is the same double-cradle-type 25CrMo4 one while the subframe and Renthal handlebars are made out of aluminum. Definitely the best of it are the suspensions – 48 mm WP USD fork capable of 11.81 inches of wheel travel and WP PDS shock absorber offering 13.19 inches of wheel travel. Working with 21-inch front and 19-inch rear Excel wheels, this contributes at making the bike a sweet corner carver and good at jumping too. 2008 KTM 250 SX HistoryCompetition 2008 Husqvarna WR 25 Two-stroke dirt bikes are a rare breed nowadays, but, like KTM, Husqvarna still has a decent market to sell these things on so they carry on producing their two-stroke model range where you’ll also find the WR 250. This bike is very similar to the Austrian one, but features a headlight and it is called an enduro. That’s just not fair! Among the Japanese crowd, Yamaha is the only manufacturer still making two-strokes and the YZ250 is the corresponsive model in this case. Now this is a motocrosser in all of its aspects so follow the previous link to find out more about it. Exterior 2009 KTM 250 SX KTM offers no Six Days version for the quarter-liter SX, just their base 2009 color scheme on the aggressive bodywork with no features shared with any of its off-road siblings. To begin with, the fenders are mounted high above the Excel wheels, which feature black paint. Being orange, the fenders contrast nicely with the large-diameter dirt spreaders positioned 58.07 inches apart one from the other. While we’re talking about dirt, it’s worth mentioning the black mudguards and that’s pretty much it. Hand guards are available only as an option. 2008 KTM 250 SX Test RidePriceAlthough offering better performance than any of the 250 cc four-strokes out there, the 2009 KTM 250 SX starts at $6,598, which is under the pricing range of that motorcycle category. ConclusionWith the 2009 quarter-liter SX, KTM shows how things can be pushed even further in the case of two-strokes not necessarily with engine performance, but by making use of a modern chassis that is light, refined and makes the bike flick able and allows the rider to get the best out of it both on and off the track. ---- SPECIFICATIONS 2009 KTM 250 SX
Engine and TransmissionEngine type: Single cylinder, 2-stroke Chassis and DimensionsFrame: Central double-cradle-type 25CrMo4
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