Don't muscle the turn. Power it. The Classen PowerSteer Aerator is the ONLY aerator that steers through the tines for non-stop (non-stress) unmatched productivity. Patented split-drive technology allows the engine to power the tines independently during aeration for fatigue-free steering and unmatched user comfort and productivity. Effortless end-of-row turning, aerate in tight circular areas and easily maneuver around trees, hydrants and other above ground obstacles. Combination throttle and belt tightener for a smooth start every time. Protective chain guards help keep grass, leaves and cores out of chains and sprockets. Heavy duty non-relube ball bearings for added durability.