Overview The ACE® 570 EPS delivers power, control, and premium features for next level single-seat off-road adventure. With a powerful and reliable 45 HP ProStar® 570 engine, trail tuned suspension, easy-to use automotive style controls, True On-Demand AWD, and a comfortable sit in, step out design, you'll have everything you need for a day dominating the trails. Power The ACE 570's purpose-built ProStar engine was designed to give you quickness, power, and optimal performance on a variety of terrains. Purpose designed, built, and tuned 45 HP ProStar engine with dual overhead cams. Electronic Fuel Injection (EFI) for instant, predictable throttle response. True On-Demand All Wheel Drive to give you the traction you need, when you need it.