The best value carbon wheel tyre system now available in a disc brake specific version newthe cosmic pro carbon has been a favorite with racers for over two decades and with the growing popularity of disc brakes on road bikes weve taken this opportunity to create a new disc version45mm deep 25mm wide and at only 1770g the cosmic pro carbon disc is the perfect balance of lightweight stiffness and aerodynamics its built on the same qualities that made our cosmic pro carbon so successful th