The Yamaha YZ 85 model is a Cross / motocross bike manufactured by Yamaha . In this version sold from year 2005 , the dry weight is and it is equipped with a Single cylinder, two-stroke motor. The engine produces a maximum peak output power of and a maximum torque of . With this drive-train, the Yamaha YZ 85 is capable of reaching a maximum top speed of . On the topic of chassis characteristics, responsible for road holding, handling behavior and ride comfort, the Yamaha YZ 85 has a frame with front suspension being Kayaba and at the rear, it is equipped with Kayaba . Stock tire sizes are on the front, and on the rear. As for stopping power, the Yamaha YZ 85 braking system includes Single disc size 220 mm (8.7 inches) at the front and Single disc size 190 mm (7.5 inches) at the back.