Zipps 30 course disc brake tubular aluminium wheelset is as packed full of innovations as your best day on a bike was packed with euphoria the 30 course disc brake tubulars durable wide rim profile offers enhanced aerodynamic efficiency as well as better comfort and cornering grip this is a high performance aluminium wheelset engineered to provide versatility for the new era of road cycling that includes disc brake road applications but also cyclocross and gravel adventures riding or racing