The good news is the RMX450Z is equipped with a spark arrestor in stock form, is sound-level legal, and red sticker eligible. The RMX450Z is a trailbike; Suzuki did not build it to be a closed-course off-road competition bike, at least not in stock trim. The RMX450Z comes with several off-road components right off the showroom floor, including an 18-inch rear wheel, kickstand, skid plate, headlight, LED taillight, and a dual mode (Sport/Standard) instrument cluster. Unlike most off-road bikes that are usually spec'd with Dunlop AT81 tires, the RMX450Z comes with a Dunlop D742FA front tire and Dunlop D756 rear tire. Suzuki offers a six-month unlimited-mileage limited warranty on the RMX450Z, which can be lengthened via the Suzuki Extended Protection program (SEP) as well.