YouTube Cush Core Tire Insert – Unboxing, review and setup! June 4, 2024 Posted by Jake von Duering 29 Jan Ā We unbox, review, and walk you through the setup process of the Cush Core tire inserts. Does improved suspension, better cornering, a smoother ride, and increased speed & performance interest you? If so, we think you’ll like these a lot!Ā