2017 Yamaha Apex XTX 1.25 The Apex X-TX adds the additional flotation and bump bridging ability of a 141-inch Ripsaw II track. Performance four-cylinder engine, electric power steering, EXUP, Tuner Generation III skis and lightweight 'SingleShot' rear suspension are all standard on this legendary trail cruiser. Electric Power Steering Yamaha's EPS system is high-tech and super lightweight, requiring no fluids or heavy pumps. It is a dynamic system that monitors vehicle speed, engine rpm and the rider's steering input to calculate the optimum amount of steering assistance more at low speeds and less at high speeds. EPS accomplishes a few things. Primarily it decreases steering effort making the machine feel lighter. But EPS also helps limit negative feedback coming through the skis. And since steering effort can be more easily controlled, different ski and runner combinations can be used with little impact on steering effort. The right combination of EPS, suspension geometry, ski and runner, allow the Apex to carve through turns with incredible precision and minimal effort. EXUP Delivers Smooth Torque Characteristics Yamaha's EXUP System utilizes a titanium body and butterfly valves that prevent the "blow back" phenomenon caused by valve overlap. This design reduces weight and eliminates "flat spots" in the power band while reducing emissions at the same time. Aluminum Frame Yamaha's lightweight CF die cast aluminum frame provides exceptional rigidity and balance. The rear frame was designed to accommodate the shortened muffler to further enhance mass centralization. Tuned for Top-End Performance The Apex engine is renowned for its ability to provide big horsepower in a very usable manner. This has been achieved by using a refined mixture of cam timing, air intake and a 38 mm 4-into-1 titanium exhaust with EXUP. The result is an engine that has excellent throttle response, is strong from low to mid-range, and sings on top. Exactly where you want it to. Tuner Skis The addition of Yamaha's acclaimed Tuner dual keel skis greatly reduce darting and offer a wide range of carbide set-up options, from mild to aggressive pattern. Revised Intake Valve Timing We changed the lift angle of the intake valves from 104° to 109° increasing the overlap of the intake / exhaust valves which when combined with EXUP results in more power and a smoother power delivery. Lightweight Pistons and Oil Rings Lightweight forged aluminum pistons with a dome shape for uniform combustion are very strong, yet lightweight, and reduce vibration while running quieter.
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