This self-adhesive fat bike tire liner is designed to provide reliable puncture protection for wide tires used on fat bikes and electric bikes. Constructed from durable TPU material, it forms a strong yet flexible barrier between the tire and inner tube to reduce the risk of flats caused by sharp debris. The built-in adhesive backing helps temporarily secure the liner during installation, making alignment easier and preventing slipping before inflation. Once installed and inflated, the liner stays firmly in place. Suitable for 20”, 24”, and 26” fat tires, it can be trimmed for a custom fit, making it a practical solution for riders seeking added protection and peace of mind.