2011 Yamaha Grizzly 550 FI Auto. 4x4 EPS, HAS AFTER MARKET TIRES AND WHEELS - VOTED "BEST OF THE BEST" With all the features of its big bore brother, the Grizzly 550 FI EPS was voted Field & Stream's "Best of the Best" thanks to its 558 cubic-centimeter powerplant, industry first electric power steering, Ultramatic transmission, On-Command two-wheel drive / four-wheel drive with differential lock, five-way preload adjustable shocks... the list goes on and on.