Tuttio ICT Ebike Inner Tube The Tuttio ICT Inner Tube (20×4.0 inches) is a high-quality replacement tube designed specifically for the Tuttio ICT electric bike and other 20×4.0 inches fat tire e-bikes. Made from durable, puncture-resistant rubber, it provides excellent air retention and flexibility, ensuring a smooth and stable ride on all terrains. Each tube is precision-molded for an exact fit and easy installation, compatible with standard 20-inch fat tires. Whether you're riding on pavement, trails, or sand, this inner tube delivers the reliability and performance you expect from Tuttio. Please note that accessories require a short preparation period before shipment. The standard delivery time for accessories is approximately 9–12 days. For accessories, returns or exchanges are only accepted in the case of confirmed quality issues. We are unable to accept returns for reasons such as personal preference or incorrect purchase.