Pivotrax 20 x 4.0 Fat Bike Inner Tube | Fat Tire E-Bikes

Schrader Valve Replacement Tube for 20 x 4.0 Tires

The Pivotrax 20 x 4.0 Fat Bike Inner Tube is a dependable replacement tube designed for fat tire e-bikes and bicycles running 20 x 4.0 tires. Built from a high-quality rubber compound, this tube is designed to improve air retention, reduce pressure loss over time, and provide reliable durability for everyday riding.

A quality inner tube can make a noticeable difference in ride feel and reliability. Proper air retention helps maintain tire support, improves consistency on rough terrain, and helps reduce the chance of pinch flats or premature tire wear. The reinforced construction of the Pivotrax tube adds extra durability while remaining easy to install, making it a great replacement tube or spare to keep ready for trail rides, commutes, or weekend cruising.

Technical Information

• Brand: Pivotrax
• Size: 20 x 4.0
• Valve Type: Schrader Valve
• Tire Compatibility: 20 x 4.0 fat tires
• Recommended Use: Fat tire e-bikes and bicycles
• Construction: Reinforced rubber compound for improved puncture resistance and air retention
• Packaging Options: Single Pack or 2 Pack, select option above

Fitment

• Fits most 20 x 4.0 fat tire e-bikes
• Fits bicycles using 20 x 4.0 fat tires
• Compatible with tires marked 20 x 4.0

Best For

• Replacing damaged or leaking fat bike tubes
• Keeping a spare tube ready for trail or street rides
• Daily commuters and recreational fat tire riders looking for dependable durability