Ride the 2018 Yamaha Apex and you'll see how effortless and precise the speed comes with the addition of the new Yamaha Reactive Suspension System (YRSS). Order before April 15, 2017 - Spring Power Surge exclusive! Top Features Electric Power Steering: Yamaha was the first and still the only manufacturer to offer Electric Power Steering to the snowmobile industry. The velocity sensing system delivers maximum assistance at slow speeds to nearly zero assistance and high speeds. Aside from dramatically reducing steering effort, the system reduces negative feedback, helping isolate the driver from unwanted steering effort. SingleShot 146 Rear Suspension: The SingleShot rear suspension features a drop-link rear suspension linkage, unique geometry, and a significant weight loss over older Mono Shock designs. The dual arm, fully-coupled suspension features inside the rail coupling blocks, an easy to use track tensioning system, and a reduction of 9-pounds less the previous 136-inch mono suspension…all while delivering exceptional ride quality, float and control in rough terrain. 1.75-Inch Backcountry Track: Representing the latest in track technology, the Camoplast 146 x 1.75-inch Backcountry blends the lines between on-trail performance and off-trail traction and flotation. The unique lug pattern and mid-sized lug-height delivers the perfect balance of deep snow traction and on-trail durability and control. Genesis 998cc 4-Cylinder Engine: The high RPM Genesis 998cc 4-stroke is one of the most sophisticated engines to ever power a snowmobile. The quick revving four-cylinder engine is incredibly smooth and linear in its power delivery. Year after year, the 998cc delivers the perfect combination of power, fuel efficiency, and durability while producing the sweetest sound in snowmobiling. Yamaha Performance Damper: Exclusive Yamaha technology, the Performance Damper is designed for exceptional overall chassis Performance by harnessing unwanted chassis vibration and distortion. The Performance Damper captures unwanted chassis energy resulting in exceptional control and comfort with remarkable high-speed stability and tracking through rutted and chatter bump filled corners.