The John Deere JS35 is a 21-inch, self-propelled walk-behind mower featuring the "MowMentum" drive system and a 6.75 gross torque Briggs & Stratton engine. Known for its versatility, it comes equipped with 3-in-1 capabilities (mulching, bagging, and side discharge) and select models feature convenient electric key start. 6.75 gross torque (approx. 190cc) Briggs & Stratton engine.Drive System: MowMentum variable speed self-propel system (adjusts to your walking pace).Deck Size: 21-inch durable steel deck.Cutting Options: 3-in-1 capability (mulch plug, rear bag, and side discharge chute included).Starting Method: Recoil pull-start with an auto-choke system, electric start.Wheel Adjustment: Single-point or dual-lever height adjustments