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FANSPRO

2 Pack Premium Butyl Inner Tubes for 20/26-Inch Fat Bikes - Heavy Duty 20x4.0, 26x4.0, 20x3.0, 26x3.0 with Schrader Valve & Tire Levers - Compatible with Mountain, Electric & E-Bikes

  • Based on 153 reviews
Condition: New
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$17.98 Why this price?
Labor Day Deal · 18% off was $21.99

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Availability: In Stock.
Fulfilled by Amazon
Arrives Sunday, Aug 31
Order within 1 hour and 3 minutes
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Size: 20" x 4.0


Features

  • Bicycle Tube SizeSchrader(America) value 20 inch heavy duty fat tire tubes. Fits most e-bikes and mountain bikes. tire width 4.0" (102-406), 2 pack include.
  • Quality TubeMade from High-quality butyl rubber compound,And it hava Better air tightness,heat resistance,and durable.Each product is strictly screened before being delivered to you.
  • Pro Tool KitCame with 2PCS tire levers, this tire Lever help to repair a flat bicycle tire, tools are overall sleek, which will not hurt your rims pry, and durable for long time use, not rust and easily hook the spokes.
  • Easy To InstallWe provide two stainlee steel tire levers and detailed installation steps,you can easily get your tube out from the tire and Install a new inner tube in minutes.
  • Good ServiceExcellent service always been our motto,Variety of bicycle tubes are available,Please confirm the size of your bike tire before you buy And if you are not satisfied with our products,you can contact us by email or return the products for a full-refund.

Brand: FANSPRO


Valve Type: Schrader


Material: Butyl Rubber


Bike Type: Mountain Bike


Wheel Size: 20 Inches


Brand: ‎FANSPRO


Valve Type: ‎Schrader


Material: ‎Butyl Rubber


Bike Type: ‎Mountain Bike


Wheel Size: ‎20 Inches


Item Diameter: ‎20 Inches


Item Width: ‎4 Inches


Compatible Tire Width Minimum: ‎88 Millimeters


Manufacturer: ‎FANSPRO


Size: ‎20" x 4.0


Compatible Tire Width Maximum: ‎4 Inches


Item Package Dimensions L x W x H: ‎7.36 x 4.72 x 4.17 inches


Package Weight: ‎0.85 Kilograms


Brand Name: ‎FANSPRO


Warranty Description: ‎3 Months


Model Name: ‎Pro-20-4.0


Color: ‎Black


Suggested Users: ‎unisex


Included Components: ‎2 Tire Levers


Date First Available: July 12, 2023


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Aug 31

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

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Reviewed in the United States on August 6, 2025 by Esteev
    • Top notch, all around!!!
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I bought an e-bike that was delivered with a flat tube and the replacement was going to take a week to be delivered. I got on Amazon to save the day, per usual. I ordered the box with two tubes to have a spare backup. I received exactly what I ordered and I appreciate that it came with two tire tools that make the removal/installation of the tubes a breeze! My order came within the two day delivery window that was promised. I got exactly what I ordered, the tube is high quality, it inflated without any issues, no leaks, the fit is perfect for my 3” fat tire, and because of the included tool, I was able to complete the whole process in under 5 minutes. Thanks to this seller and Amazon, I was able to get on my brand new ebike and hit the trails before the manufacturer of my bike even sent the replacement tube! ... show more
Reviewed in the United States on April 16, 2025 by Jeannie Song
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Very good deal.
Reviewed in the United States on July 27, 2025 by Michael S. Reeves Sr
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The price was appealing, but as the saying goes, you get what you pay for. These so-called "heavy-duty" tubes are dangerously thin and certainly not suitable for heavy-duty use. Compared to the regular tubes I bought from Amazon, they are a complete letdown. Thankfully, the Amazon tubes lasted for years without any issues, even after many miles on and off-road riding my self-built fat tire bike. That I enjoy every chance I get. ... show more
Reviewed in the United States on July 17, 2024 by Bobby
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What a great intestine! Thicker than most. Excellent buy
Reviewed in the United States on May 13, 2025 by John Burke
    • Tools made install easy!
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Great fit and the tools that come with it worked really well!
Reviewed in the United States on June 26, 2025 by Evan Soto
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Reviewed in the United States on August 11, 2025 by John Son
    • Be careful. Sizing is weird
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Don’t know why they advertised this size when it’s not. The size tube is 3.5/4.0 as 1 tube. isn’t exactly 26x4.0. Wasted money, got stranded because I thought it was the same. Trust me it is not.
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