This bottom bracket is specifically designed to accommodate the M30 spindle of Praxis and Infocrank on a 386EVO frame, making it an ideal choice for cyclists looking to enhance their bike's performance. The set includes our PF30 bottom bracket equipped with high-quality road or cross bearings. Additionally, it comes with a non-drive side reducer that seamlessly fits the 28mm stepdown of the 30mm Praxis spindle. This thoughtful design ensures a snug and secure fit, optimizing drivetrain efficiency. When selecting your bearings, consider your riding style: choose road bearings for smooth tarmac rides on road bikes, while cross bearings are better suited for rugged terrain found in mountain biking and cyclocross. By using Kogel Ceramic Bearings, you can further improve performance, as these options significantly reduce friction and enhance durability, giving you an edge whether you're racing or training.