Riding trowel

The Allen MSP 425 is a redesigned rider that replaces the Allen SP425 riding trowel. It also features a new torque-converter clutch and improved weight to horsepower ratio. Other features include manual steering and pitch controls; a 34-hp liquid-cooled Vanguard gasoline engine; a torque converter clutch system; two 46-inch diameter, 5-blade non-overlapping rotors; rotor speeds up to 170 rpm; electric-powered spray system for application of retardant; and flip-up seat and removable screens for accessibility to the engine, clutch and drive-line.