Ace High Performance Skateboard Bearings deliver exceptional durability and precision engineering for an ultra-smooth ride. Designed with optimal tolerance and race-ready oil lubricant, these bearings ensure consistent speed and control under demanding conditions. The removable rubber shield and crown allow for precise cleaning and maintenance, extending bearing life. Tested and approved by Ace pilots, each set includes four spacers for secure installation. Trusted by professionals, these bearings offer top-tier performance at a competitive price.