Shimano dura ace 9000 c75 tubular wheelsetwh 9000 tu carbon tubular wheel designed to meet pro road race criteria lightweight tubular full carbon 50mm deep 24mm wide d2 rim for improved aerodynamics and increased rigidity for sprinters and tt specialists front features 16 stainless steel butted 20 18 2 0 and bladed straight pull spokes elbow less spokes make for a strong yet compliant wheel high lateral rigidity is produced with a wide flange spacing labyrinth double contact sealing ef