The MP 215 is an entry-level riding trowel that includes standard-duty gearboxes, four-bladed 36-in.-diameter rotors, and a torque converter clutch that gives the operator full variable speed of the rotors up to 145 rpm. It also provides manual steering and pitch control, an electric-powered spray system for application of retardant, four lights, and a 12-V charger. Allen Engineering. 800-643-0095.