The KTM EXC was one of the off-road bikes that Austrian motorcycle manufacturer KTM Sportmotorcycle AG released for the 2005 model year. It can be considered a higher-level version of the SX, another off-road bike from KTM. The 2005 KTM EXC is split into seven models: the EXC 200, EXC 250, EXC 250 Racing, EXC 300, EXC 400 Racing, EXC 450 Racing and EXC 525 Racing. The manufacturer’s suggested retail price range for the bike was $5,848 to $7,548.
Each 2005 KTM EXC is powered by a liquid-cooled single-cylinder engine. The two-stroke version goes on the EXC 200 and EXC 250, while the four-stroke version is found on the other models. Each EXC model is named after its engine displacement, which is represented (in cubic centimeters) by a rounded-up numerical approximation that conforms to KTM nomenclature. For instance, the EXC 525, which has the biggest and most powerful engine, has an engine displacement of 510.4 cubic centimeters, which is rounded up to 525. Fueled by a Keihin carburetor – which measures at 36 to 39 millimeters depending on model – the engine is paired with a five- or six-speed manual transmission.
For stopping power, each 2005 KTM EXC uses an all-wheel disc braking system. Like other KTM bikes, it uses a top-notch chromium-molybdenum frame: implemented for a combination of lightness and sturdiness. Each bike has an orange color scheme, complete with a decal kit; and digital instrumentation consists of a trip odometer and speedometer. The 2005 EXC rides on front 21-inch and rear 18-inch wheels and Pirelli tires.