Introducing the new FZ Stainless Eagle S! This unique bearing is based off the wildly popular FZ Golden Eagle R188. Its made of stainless steel rings, 10 Si3n4 balls and stainless retainer. This engine delivers a very fast and tight spin with low signature and subtle feedback. The tolerance feel is unique and gives very little side to side play. This bearing is easily cleaned with high ISO alcohol and a thorough drying with hair dryer.