Inline Skate Maintenance -- Basic and Advanced Lessons. Home - Adam's Inline - 612-817-4930 - Speed Skates. Ball Bearings:Miniature bearings:Ceramic Bearings:Bearing. Inline skating website & magazine. Home - Adam's Inline - 612-817-4930 - Speed Skates. RocknRons Rockets Skateboard Bearings - Ballistech Missiles.