The Shimano Dura-Ace R9200 C36 TU Carbon Tubular 36mm 700c Rear Road Wheel has been designed to meet pro road race criteria. The lightweight tubular full carbon 36mm deep rim provides improved aerodynamics, increased rigidity and excellent inertia for sprinters and TT specialists.Shimano Dura-Ace R9200 C36 TU Carbon Tubular 36mm 700c Rear Road Wheel FeaturesStainless steel butted (2.0-1.8-2.0) and bladed straight pull spokes for optimal balance and rigidity (OPTBAL)Elbow-less spokes make for a strong yet compliant wheelHigh lateral rigidity is produced with a wide flange spacingLabyrinth double-contact sealing effectively shuts out water and dirtAlloy cone with integrated steel Borozon treated bearing races - super mirror finish reduces frictionFreehub uses direct engagement interlocking faces for quick power transferCold forged, machined aluminium hub shell and oversized 7075 alloy axle keep the wheel weight to a minimum700C tubular compatible12-speed compatible rear wheel