You've put your time in at the velodrome on secondhand, lightly used disc wheels borrowed or bought at discount from benevolent friends and racing buddies, but at a certain point, you reach a point when you're ready to upgrade to exactly what you want. Whether you're rewarding a big individual win at your local track or have gotten serious enough to fill an entire race calendar with races at velodromes near and far, the PRO Textreme Carbon Disc Rear Wheel represents a serious upgrade in your track cycling career, and it will send you whirring with finesse around tight corners with its aerodynamic airfoil design. To craft the Textreme, PRO molds carbon fiber in a monocoque construction, eliminating artificial stress points along the wheel and instead creating a smooth, uniform structure without any excess seaming to add unnecessary weight, resulting in a design with an impressive strength to weight ratio. Answering to ever widening rim trends, the Textreme features a 24mm external width, helping air flow with as little interruption as possible over the surface of the wheel, with a featherweight Dura Ace 9000 hub from PRO's parent company Shimano spinning quietly at the rim's center. PRO gave some extra attention to the valve cutout at the edge of the rim on the Textreme as well, using an oval shape instead of a circle to provide extra clearance for longer valve stems, and it includes a wheel bag to help ensure safe transport when your races include travel.