WH-R9170 TU carbon tubular disc brake wheel, designed to meet pro road race criteria. Features: Lightweight tubular full carbon 40 mm deep 24 mm wide rim for improved aerodynamics, increased rigidity and excellent inertia Easy to use Centre-Lock rotor mount for use with disc brakes 24 stainless steel butted (2.0-1.8-2.0) 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 effectively shuts out water and dirt Alloy cone with integrated steel Borozon treated bearing races - super mirror finish reduces friction Quick and easy to maintain bearing adjustment Cold forged, machined aluminium hub shell and oversized 7075 alloy axle keep the wheel weight to a minimum 700C tubular compatible, 23 - 28 For 100 x 12 mm axle Average weight 626 grams