A New and More Civilized Beast. Tamed for the homeowner, the BOB-CAT? CRZ? zero-turning riding mowers provides legendary BOB-CAT? durability, cut quality, and ease of ownership with the comfort and performance you want for your own property. From a reliable Kawasaki? FR engine to our all-new TufDeck? 10 gauge fabricated, welded and reinforced steel decks, and patented Double-Wave Baffle System, the CRZ may just be the very last mower you will ever need to buy.