Disc wheels are a type of bicycle wheel that can significantly enhance aerodynamic efficiency, speed, and stability in triathlons and time trials. Unlike traditional spoked wheels, disc wheels have a solid, disc-shaped structure that covers the entire area between the hub and the rim. This article provides a comprehensive guide to disc wheels, including their benefits, differences from spoke wheels, and recommendations for the best carbon solid disc wheels. Whether you're a professional cyclist or a beginner, this article will help you understand why disc wheels are a game-changer in the cycling world.