Upgrade your ride with the Salt Rookie USA BB Bearing Set, a high-quality looseball bottom bracket designed for USA-sized frames. This set includes durable steel cups, crmo bearings, cones, and a locknut, providing everything needed for a smooth and reliable crank setup. Weighing in at 314g, it's compatible with most 19mm spindle looseball cranks, such as the Salt "Rookie" LB cranks, ensuring a perfect fit and enhanced performance.