The centrifugal clutch engagement prevents belt slip when engaging the clutch which means fewer maintenance costs.The 25 hp (18.6 kW) Electronic Fuel-Injected (EFI)Kohler engine performs well during cold-weather starts, has reduced occurrence of engine flooding and provides improved fuel economy over comparable carbureted gas engines. The large infeed opening makes feeding irregular material easier and decreases the amount of saw cuts needed prior to feeding the chipper. The exclusive SmartFeed, patented feed-sensing control system, from Vermeer helps increase operator productivity and reduces strain on vital engine parts, as engine rpm is monitored and feed rollers are controlled. bottom feed stop bar is strategically located to make it possible for the operator's leg to strike the bar and shut off the feed mechanism either intentionally or automatically in an emergency situation. The wide offers a wide footprint at the axle for side-to-side stability;