Humachine Technologies & Sensual Racing Form The YZF-R1 and YZF-R6 are equipped with under cowls that are based on the image of a diffuser, to give them the best form for aero-management. These are not cowls for simply enclosing the engine, but forms composed of blade surfaces that actively control airflow. This spirit has been directly inherited by the YZF-R15 version 2.0. "Harmony between rider and machine" YAMAHA's Human Technology involves studying the form of the motorcycle actually in motion with the rider o...
