SpaceSavr technology allows the Troy-Bilt TB220B XP to be stored flat under a tool bench or in an upright, vertical position against the wall in your garage or shed. Variable speed, front-wheel drive is designed to adjust the mowing speed quickly with a handle-mounted lever. The Briggs Stratton ReadyStart engine is designed for simple, no prime, no choke starting. A 3-in-1 deck design allows you the choice of using the rear bag, mulching mode, or side discharge options that are included. Troy-Bilt 21�� 150cc 3-Cycle Gas Powered Front Wheel Drive Self-Propelled Lawn Mower, with Rear Bag 150cc Briggs Stratton ReadyStart engine designed for simple noprime, nochoke starting SpaceSavr design allows for flat or upright vertical storage, minimizing garage or shed space Variable speed front wheel drive enables quick speed adjustments for easy navigation around the yard 1.9 bushel rear bag efficiently collects grass clippings for easy cleanup or composting Equipped with a mulchready feature and includes both rear bag and side discharge chutes