SECURE FIT: 26x4.0 heavy duty e-bike tube suitable for most fat tire bikes with 26'' tires between 3.5'' to 4.0'' wide, including e-bikes and mountain bikes (MTB), featuring a 32mm Schrader Valve. THICKER AND MORE RESISTANT: Our 26x4 bicycle inner tubes are crafted from robust, thick, heavy-duty butyl rubber. The thicker body can withstand more friction and wear, thus extending the tube's service life. COMFORTABLE RIDING EXPERIENCE: The butyl rubber 26 x 3.5/4.0 bike tube has better air tightness, is sturdy, and has shock absorption. Say goodbye to bumps and vibrations, adding extra comfort and safety to your ride! INCLUDES 4 LEVERS, EASY TO INSTALL: Our 26x4 fat tire tube includes 4 levers that make removing and installing the 26x4 inner tube easier, while also preventing fingers from getting caught in the tire and protecting the rim from damage. RELIABLE PERFORMANCE: Standard Schrader valve allows for easy inflation. The inflation port has a protective cover that is not easy to leak. Good air tightness helps keep tire pressure stable, thus improving driving safety. NO MORE WORRIES ABOUT FLAT TIRES: Ensuring you're prepared for any unexpected flat tire or need for spare parts! Enjoy a worry-free shopping experience with our 1-year free exchange policy! PAKCHEF 26x4.0 Fat Tire Tube for Fat Bikes & Electric Bikes - Ideal for 3.5 - 4.0 Inch Wide Tires, Durable & Comfortable with 4 Pry Bars - Perfect for Riders. Universal Compatibility: Specifically designed 26 4 fat tire tube suitable for most 26 inch fat tire bikes with tire widths ranging from 3.5 to 4.0 inches, including popular fat bikes and electric bikes. Premium Durability: Crafted from thicker and heavy-duty materials, our bike tube ensures long-lasting performance and reliability, withstanding the rigors of various terrains. Easy Installation: Comes with 4 pry bars, allowing for effortless installation without the risk of pinching fingers or scratching the bike rim, making it convenient for both beginners and experienced cyclists. Enhanced Comfort: The quality construction of the 26x4 bike tire tube provides a smooth and comfortable riding experience, reducing vibrations and bumps on the road. Puncture Resistance: The heavy-duty material offers excellent protection against flats and punctures caused by rocks, thorns, and other potential hazards, ensuring a worry-free ride. Reliable Inner Tube: High-quality 26 x 4 fat tire ebike tires tube that meets the demands of regular and intense cycling, maintaining proper air pressure and stability. Versatile Bike Tube: Whether for mountain biking adventures or daily commutes on fat bikes, the PAKCHEF 26x4.0 fat bike tube is a reliable choice for all cycling enthusiasts. The PAKCHEF 26x4.0 Fat Tire Tube is a top-notch choice for cyclists seeking a reliable and high-performing inner tube for their 26 inch bikes. This tube is specifically engineered to fit a wide range of fat tire bikes, especially those with 26x3.5 or 26x4 bike tire dimensions. It is suitable for various models, including electric bikes and mountain bikes (MTB). Our 26x4.0 fat bike tube is made from a thicker and heavy-duty material that guarantees durability and long-term use. The heavy-duty butyl rubber construction not only makes it puncture resistant, protecting against flats from rocks, thorns, and other obstacles, but also ensures better air retention, providing a stable and comfortable ride. Size-Specific Fit - Fat bike tubes are engineered to precisely fit common fat tire sizes like 26x4.0, 26x3.5, etc. This optimized fit reduces friction and pinch flats. Fat bike tubes designed for 26x4 inch tires are engineered for maximum durability across rugged off-road terrains: Thick Butyl Rubber Construction - High-quality butyl rubber with extra thickness provides superior puncture resistance compared to standard tubes. This is the standard material used for most fat bike tubes. It provides a good balance of durability, puncture resistance, and cost-effectiveness. Schrader valves are more common and compatible with most floor pumps. Caps protect the valve stem from dirt and damage when riding off-road. Caps also help retain air pressure when the tube is not inflated.