BBS PFS Rings x0923431 are a set of high-quality, precision-engineered rings designed for use with BBS Performance Friction System (PFS) wheels. These rings are made from durable materials and are designed to provide a secure and stable fit for your PFS wheels. They are compatible with a wide range of BBS PFS wheels and are perfect for use in high-performance applications. These rings are essential for ensuring the proper functioning and safety of your PFS wheels, making them a must-have for any serious performance enthusiast.