Xray XB4 2023 HyperGlide™ Bearings

High-Performance Hybrid Ceramic Bearings Features: Increased Drivetrain Roll Lower Friction Cooler Temps ABEC-5 Rating Si3N4 Ceramic Balls Stainless Steel Sizes: (8) 10x15x4 (4) 5x12x4 (4) 5x10x4 (2) 8x14x4 Compatibility: Xray XB4 2023 Our "Full Kits" DO NOT include steering bearings.  We recommend every few track days to check for any necessary maintenance needs. If the bearings feel gritty or have reduced roll, remove bearings and clean with a citrus-based degreaser & lightly oil with a premium high temperature lube/oil like our TDK Bearing Oil. Car brake parts cleaner will ruin your bearings and is NOT recommended.