Shimano dura ace 9000 c35 tubular front wheel wh 9000 tu carbon tubular wheels designed to meet pro road race criteria the design concepts of the new generation dura ace 9000 wheels created products specifically engineered with attributes that are required by specific racing disciplines the blade concept development is shimanos first fully committed effort to develop an aerodynamically superior wheel the new rim profile is the result of countless hours in the wind tunnel and real world time