Is the Tannus Armour Tire Insert 24 x 3.0-4.0 the right flat protection for your 24-inch fat tire kids or cargo e-bike?

The Tannus Armour Tire Insert 24 x 3.0-4.0 is a foam insert that sits between your tire and inner tube to deliver puncture protection, pinch-flat protection, and rim protection on 24-inch fat tires in the 3.0 to 4.0 inch width range. Built around Aither, Tannus's patented multi-cell rebounding foam compound, the insert provides 15mm of puncture protection under the tread and 2mm of sidewall protection from sharp objects, eliminating roughly 90% of common flats. This is the right insert for 24-inch fat tire kids bikes, mid-tail and fat tire cargo e-bikes, and any 24-inch wheel running tires in the 3.0 to 4.0 inch range.

Armour lets you run lower tire pressures for better grip and a smoother ride without risking pinch flats, especially valuable on heavy e-bikes where pinch flats are a constant risk. Note that this fat tire size does not offer run-flat capability, so a flat will end the ride. Installation is as simple as a regular tube swap, requires a minimum 19mm inner rim width, and uses a smaller-than-stock tube (24 x 2.5-3.0) for proper fit. Sold as a single insert, weight 480g, in Tannus's signature red.