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YUNSCM 2-PCS 20x3 Self-Sealing Fat Bike Tubes 20 x 2.5/2.6/2.7/2.8/3.0 AV32mm (64/76-406) Super Automatic Repair, Puncture Resistant Compatible with 20x2.5/3.0 E-Bike Bicycle Tire Tubes Schrader Valve

  • Based on 103 reviews
Condition: New
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$24.99 Why this price?
Memorial Day Sale · 7% off was $26.99

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Availability: In Stock.
Fulfilled by Amazon

Arrives Tuesday, May 26
Order within 2 hours and 41 minutes
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Features

  • SIZE: 32mm Schrader Valve. Fits all 20x2.50, 20x2.60, 20x2.70, 20x2.80, 20x3.0 bike tire tubes Installation Precautions:Please check the side of your tire for the tire size your bike uses
  • Easy To USE: The Self Sealing Bike Inner Tube is a self-repair for some small holes or very fine cracks.For example, after a long time, some places will leak air quietly,accidentally hit nails and other problems, which are easy to repair.It is worth noting that our self-repairing inner tube can be used within the normal temperature environment and cold days -15 C,and it is more conducive to travel in cold weather.
  • Safe Bike Tubes: Pre-installed with Sealant to provide maximum puncture protection and prevent flat tires on your bike.The self-repairing inner tube is a thicker design, which is more durable than the normal inner tube.The puncture repair fluid circulates through the inner tube, automatically sealing the punctures.After testing, the leak can be repaired within 5~8 seconds under normal conditions.
  • Ultra Durable: Our inner tubes have higher puncture resistance , and the body can withstand more friction and wear, thus extending the service life of the tube, reducing replacement frequency and maintenance costs. And in long-term use.
  • Please note: Because the Self Sealing fluid is flowing, in order to prevent the liquid m flowing out during operation, please do not concentrate the center of gravity or the liquid near the air nozzle when pumping up.
  • Installation: 20"x2.5"/3.0" bicycle replacement inner tube for easy installation and removal. Check the valve position to ensure that the installation direction is correct
  • This inner tube is compatible with the corresponding models of mountain bikes, road bikes, Cruiser bikes, electric bikes

Brand: YunSCM


Valve Type: Schrader


Material: Butyl Rubber


Wheel Size: 20 Inches


Item Diameter: 20 Inches


Brand: ‎YunSCM


Valve Type: ‎Schrader


Material: ‎Butyl Rubber


Wheel Size: ‎20 Inches


Item Diameter: ‎20 Inches


Item Width: ‎3 Inches


UPC: ‎781509355425


Compatible Tire Width Minimum: ‎64 Millimeters


Item Weight: ‎0.91 Kilograms


Manufacturer: ‎YunSCM517135


Size: ‎20 x 3.0


Compatible Tire Width Maximum: ‎35 Millimeters


Item Package Dimensions L x W x H: ‎8.43 x 5.91 x 3.43 inches


Package Weight: ‎0.91 Kilograms


Brand Name: ‎YunSCM


Model Name: ‎20x2.5/3.0


Color: ‎Black


Part Number: ‎YunSCM517135


Included Components: ‎2 pcs 20x2.5/3.0 AV32mm Schrader Valve bike tubes


Date First Available: May 17, 2021


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, May 26

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.

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Top Amazon Reviews


  • The right tube for the right tire. Trusted brand.
Just what I needed to secure my tire bead of my 3" tire on a fat 4" rim. No gaps, but still had to massage tire when filling with air ( which should be done anyways when fitting a smaller width (3" ) tire to a wider (4" ) rim). Regardless, a perfect fit with a quality tube. 20x3 tire (using 3" tube) on the right, pictured with standard 20x4 on the left. ... show more
Reviewed in the United States on September 18, 2025 by Marco Marco

  • Heavy duty
Seem like really good quality. When I picked up the package off the porch I couldnt believe how heavy it was. Needed 20x2.6 for my son's mountain bike and these are probably overkill and are noticeably heavier than typical bicycle tubes. Def more for e bikes fyi, but I'd like to see him pop this one! ... show more
Reviewed in the United States on September 25, 2025 by Tommy G.

  • Worth having
After a period of use. It performed perfectly.
Reviewed in the United States on September 14, 2025 by james cheng

  • Great Prosixt
These are great, not losing air. Seems to be sealing just fine
Reviewed in the United States on October 3, 2025 by Poohbear

  • Slime makes a mess.
I’ll never buy another self-sealing bike tire again.
Reviewed in the United States on July 29, 2025 by Michael Marino

  • Great tires, great brand
Had these tubes on my horn because the original ones went flat; honestly a great purchase. Fits my hard to fit size just great. Quality rubber?’, this might be the brand I decide to go with now!
Reviewed in the United States on July 2, 2025 by Kevin B.

  • Easy to install
Ensure all punctures in tire are addressed before installing new tubes.
Reviewed in the United States on June 4, 2025 by J. Foor

  • Great Product
Great Product I Would Purchase Again and I Will Recommend To My family and friends 👍😊
Reviewed in the United States on April 14, 2025 by JOHN J DEBIASIO

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