Tannus armour fat bike install - the BEST puncture prevention product available! - YouTube
Amazon.com : Tannus Unisex's Armour Puncture Round Protection, high Grip with Low Rolling Resistance, Easy Assembly, Reusable, Free tyre and Tread Selection, red, 20 x 4.0-4.8 : Sports & Outdoors
Tannus Armour Tubeless Tire Insert - Sovereign Cycle