20x4.0 inner Tube with straight Valve
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List of compatible tire sizes
These bike inner tubes are designed to fit large 20-inch wide tires.
If the size printed on your tire sidewall appears in the list below, you can order these inner tubes with confidence.
- 20x4.00 (98-406)
- 20x4.00 (100-406)
- 20x4.00 (102-406)
- 20x4.00 (103-406)
Don’t see your tire size in the list above? Then these inner tubes are not compatible with your bike. Check out our other 20-inch inner tubes.
Use
This 2-pack of 20x4 inner tubes is made for extra-wide tires. They’re a great fit for daily-ridden electric fat tire bikes as well as recreational and off-road models, compact cargo bikes, and any big-wheel ride running 20-inch fat tires. These tubes install easily on standard tube-type setups and are an excellent replacement or backup option, whatever kind of riding you do.
Materials and performance
Made from premium butyl rubber, these 20-inch inner tubes deliver:
- Excellent air retention, so your tires stay inflated longer.
- Added resistance to flats, pinch punctures, and abrasion common with fat tires.
- Smooth, stable rolling for better comfort on pavement and trails.
- Quick, hassle-free installation, with a Schrader valve that fits 20x4.00 rims.
Perfect for getting you back on the road fast after a flat, these 20x4 inner tubes let you ride worry-free every day or on weekend adventures. Keep a spare set on hand so you’re always ready to roll—no stress, no unnecessary downtime.
20x4.0 inner Tube with straight Valve
