Its powerful Genesis 4-cylinder engine, high tech Electric Power Steering, and specialized rear suspension make it one of the most versatile, technologically advanced snowmobiles in the world. The 150HP-class Genesis 150FI engine delivers mind-bending performance. When you let off the throttle, the EBRS helps you coast smoothly to a stop rather than decelerating under engine braking. The radical Yamaha EPS system is the first ever found on a snowmobile and delivers easy, precise steering, enabling you to ride harder, faster, and longer while keeping fatigue at bay. Out back, the Dual Shock CK 144 rear suspension has an aggressive 6-degree tip up, allowing the Apex X-TX to corner like a 121-inch, bridge bumps like a 136-inch, and have the floatation of a 144-inch. The Apex X-TX is packed with Yamaha Advantages for the highest cross country performance.