John Deere GX85 Price, Reviews, Specs, Engine Oil Capacity, Weight, Serial Numbers, Attachments, History, Features & Pictures John Deere GX85 Riding Lawn Mower is equipped with a Briggs & Stratton 28M707 gasoline 1-cylinder air-cooled vertical-shaft, 465cc engine, which delivers 13 hp (9.7 kW) power. John Deere GX85 Riding Lawn Mower featured with a 4x2 2WD chassis, … [Read more...] about John Deere GX85 Riding Lawn Mower Price, Specs, Review