The MSP 455 is a new power-steering, mechanical-drive riding trowel. Its 40-HP air cooled Kohler gas engine, heavy-duty gearboxes and spiders combined with a torque convertor clutch provides optimum weight-to-horsepower performance. The raised operator platform and hydraulic joystick positioning makes this one of the most ergonomically designed riding trowels on the market. This trowel has two 46-inch diameter, 5-blade non-overlapping rotors. Allen Engineering Corp. WOC Booth O30519