20x4.0 inner Tube with straight Valve

20x4.0 High-Performance Inner Tube - Pack of 2

Upgrade your ride with these ultra-durable 20x4.0 FatBike inner tubes (ETRTO 100-406).
Designed for superior puncture resistance and durability, these reinforced inner tubes ensure a smooth and safe ride on any terrain, whether you're cycling on asphalt, through forests, on sand, or even in snow.

Compatibility: Which Tyres Are These Tubes Suitable For?

These inner tubes fit large road and off-road tyres with the following sidewall markings:

• 20x4
• 20x4.0
• 20x4.00
• 20x4 1/4

Why Choose These 20x4.0 Inner Tubes?

1. High Resistance: Optimised thickness to reduce the risk of punctures and extend lifespan.
2. Straight Schrader Valve: Easy inflation with any standard pump or compressor.
3. Comfort & Stability: Effectively absorbs shocks for better control and a smooth ride across all terrains.
4. Versatile Performance: Ideal for daily urban commutes as well as extreme outdoor adventures.
5. Premium Quality: Made from high-grade rubber, designed for long-lasting performance.

Technical Specifications

• Size: 20 x 4.0 inches
• ETRTO Standard: 100-406
• Valve Type: Straight Schrader (Auto Valve)
• Valve Length: 33 mm
• Packaging: Pack of 2 inner tubes
• Recommended Use: Electric FatBike, large-tyre MTB, and all-terrain mountain scooters

👉 Looking for more FatBike inner tubes? Explore our full range of large-tyre inner tubes on our dedicated page.

Installation & Inflation Tips

• Before Installation: Check inside your tyre for any debris (thorns, glass, stones) that could cause a puncture.

• Inflation Pressure: The recommended pressure is usually marked on the tyre sidewall. For example, "Inflate to 30 psi (2.0 bar)" means the inner tube should be inflated to a maximum of 30 psi (2 bars) for optimal performance.