2010 Polaris Sportsman 550 with EPS, 4x4 - The 2010 Polaris Sportsman 550 ESP ATV is engineered for extreme off-road performance. This powerful model is ideal for ATV trail riding, ATV hunting, and is the perfect utility ATV. Key features are: 42 horsepower 550 cubic centimeter SOHC EFI engine Electronic Power Steering (EPS) Rolled Independent Rear Suspension (IRS) Superior ergonomics