DR-Z400 in Dual Sport and SuperMoto versions.

Stock Tire Sizing for Dual Sport are 120/80-18 rear and 80/100-21 front. Alternatives are 130/90 or 130/80 for the rear and 90/90 for the front.
Stock tires for the SM model are 140/70-17 rear and 120/70-17 front. However, many riders use a 150/60 or 130/90 for the rear.

Chain & Sprocket stock gearing is 15/44 for the S and 15/41 for SM models.