Troy-Bilt TB230 163cc 21-inch 3-in-1 Front Wheel Drive Self-Propelled Lawnmower Powered by a 163cc OHV 725EX Briggs & Stratton engine with ReadyStart technology for a powerful, easy start Equipped with a built-to-last 21-inch steel deck with dual-lever height adjustment and front wheel drive system with a variable speed transmission An integrated deck wash system plus 3-in-1 capability to side discharge, mulch or rear bag (with mulch bag included) Designed with 8 x 11-inch tread wheels, and an adjustable handle for strong performance while operating Equipped with 21-inch TriAction cutting system for the best cut