The Race wheel program has expanded to meet even more intended uses. This starts from the very beginning when deciding what materials to build the wheels from. The wheels needed to expand on the characteristics of what made the Race program so popular in the first place. They needed to be comfortable even under intense use.The light alloy, medium profile rims provide the aerodynamics necessary to be used in races. The light alloy hubs use sealed bearings to ensure reliability and excellent smoothness in any condition. The new rim profile ensures high end rigidity and reactivity. The new Race DX has been studied and developed for the assembly of the disc brake, and the rim profile ensures excellent rigidity and reactivity.**Requires RPAXLR9 to convert to rear QR**Weight: 1846g**Hub Specs:*** Axle: Steel Bolt-Thru* Bearings: Miche* Hub Body: AL 6061 T6* Disc Fitment: Centrelock (Lockring not included)* Freewheel Body: AL 7075 T6* Rear Axle: 142x12mm (Converter for 135x9mm - RPAXLR9)* Freehub: CA 9/10/11/12x, SH 9/10/11/12x**Rim Specs*** Material: Lightweight alloy* Braking Surface: Aluminium CNC* Front Rim Height: 30mm* Rear Rim Height: 30mm* Rim Width: 23mm* Tubeless Compatible (Sold Separately)