Redesigned MP 235 Edger mechanical drive ride-on trowel has rotating guard rings, which allows the operator to run along edges of walls, and around columns and pipes. Operators can edge within 5/16 inch of the edge of a wall, eliminating the need to hand finish those areas. The patented trowel is similar in specifications to the model MP 215 ride-on trowel, including a stretched frame. Unit has a GX690 air-cooled Honda gasoline engine, and two 36-inch, 4-blade nonoverlapping rotors. Torque converter clutch allows the operator to vary rotor speeds up to 145 rpm.