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Tusk Heavy Duty 2mm Motorcycle Inner Tube Butyl Rubber Upgraded Replacement Tube 80/100×21

  • Based on 880 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon

Arrives Wednesday, Sep 2
Order within 23 hours and 11 minutes
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Size: 80/100x21


Features

  • Extra Thick 2 mm Wall provides stronger puncture resistance versus standard tubes
  • Premium Butyl Rubber good air retention and resistance to aging / heat
  • Centered TR-4 Valve Stem fits common rim designs and allows easy inflation
  • Precise 80/10021 Sizing engineered to match common 21" front tire dimensions
  • Reliable Backup or Replacement ideal for trail use, daily repair kit, or upgrade

Description

The Tusk heavy duty 2 mm motorcycle inner tube in size 80/100×21 is built for riders who want more durability than typical stock tubes. The added thickness helps resist pinch flats and abrasion when riding challenging terrain or over sharp edges. Made from quality butyl rubber, this tube balances flexibility with strong air retention and longevity. The TR‑4 valve stem is centered for compatibility with most rims, ensuring dependable access for inflation. Whether you're repairing a damaged tube or carrying a trusted spare for off‑road rides, this tube is ready. Its 80/100×21 specification fits many 21" front tires used in dual sport and enduro setups. Important note: Always verify your tire and rim compatibility before installation and ensure there is no rim damage or sharp edges. Use this tube for trail, street, or mixed terrain riding. It makes a practical upgrade over standard tubes, and a reliable option to carry in your toolkit.

Brand: TUSK


Valve Type: TR-4 valve stem


Material: Rubber


Wheel Size: 14 inches


Item Width: 8 centimeters


Brand Name: TUSK


Number of Items: 1


Manufacturer: Tusk


Unit Count: 1 Count


Manufacturer Part Number:


Material Type: Rubber


Valve Type: TR-4 valve stem


Wheel Size: 14 inches


Compatible Tire Width Minimum: 8 centimeters


Compatible Tire Width Maximum: 8 centimeters


Bike Type: Motorcycle


Item Width: 8 centimeters


Valve Length: 40 millimeters


Size: 80/100x21


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, Sep 2

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


  • Works perfectly and as expected
Size: 80/100x21
Great quality and durability thickness is perfect for working with when installing tires by hand. Perfect size, no leakage right out the box so not defective in any way from shipper.
Reviewed in the United States on April 28, 2026 by Hydrosteve

  • Fit my motorcycle 👍👍
Size: 90/100x16
Great product!!! Thickness, air retention, Value for money!!
Reviewed in the United States on March 12, 2026 by Wayne Hunsaker

  • Good buy
Size: 110-120/100x18
Great replacement over the stock tube that popped for unknown reasons. I've been riding all year without issues.
Reviewed in the United States on August 3, 2026 by bmore

  • Perfect for a dirt bike
Size: 110-120/100x18
Durable, lasts awhile perfect
Reviewed in the United States on July 29, 2026 by Anthony Leaming

  • Klx110 23
Size: 80/100x12
Valve stems held up on these for me but I have a Tusk rim lock. Anyways I think they get dry around 4 months or riding. And pinch easy on lower air pressure. I’m on my third one.
Reviewed in the United States on October 11, 2025 by Ryan MIller

  • Nice and thick inner tube
Size: 70/100x19
Used on a Rawr Mantis x. Fit perfectly, feels durable.
Reviewed in the United States on March 28, 2026 by daniel Tapia

  • Greatest tube
Size: 70/100x19
Bro this tube with slime literally i had for months jumping off roading everything and is the best out in the market
Reviewed in the United States on March 20, 2026 by Hilda

  • Doesnt pinch and tear easy
Size: 3.5" x 3.5"-3.5"
So glad started buying the HD tusk brands.The cheapies pinch n ruin so easily
Reviewed in the United States on July 26, 2026 by Amazon Customer

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