Tannus Armour Tire Insert - 20 in.

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From city streets to off-road tours, this Tannus Armour 20 in. single tire insert protects your tube from sharp objects while giving you increased grip and vibration damping for a smoother ride.

  • Features

    • Eliminates 90% of all punctures by wrapping around your tire tube to provide 15 mm of puncture protection on top and 2 mm of sidewall protection
    • Absorbs vibrations for a smoother, more comfortable ride
    • Engineered to minimize rolling resistance, balancing speed and protection
    • Can run at lower pressures for increased grip in wet conditions and loose rock
    • If you get a flat, the insert allows you to ride a few more miles on gentle terrain without hurting your rim; does not apply to 20 x 3.0–4.0 in. or 20 x 4.1–4.8 in. sizes
    • Designed for 20 in. tires; requires the use of a tube with a smaller width than your tire (tube not included)
    • Minimum inner rim width needed: 19 mm
    • Easy to install
    • Sold as a single insert


    Insert size Recommended tube size
    20 x 1.75-1.95 in. 20 x 1.0-1.5 in.
    20 x 1.95-2.5 in. 20 x 1.5-1.95 in.
    20 x 3.0-4.0 in. 20 x 2.5-3.0 in.
    20 x 4.0-4.8 in. 20 x 3.25-3.75 in.
    View all Tannus Bike Tire Inserts
  • Technical Specs

    Best Use


    Tire System


    Wheel Size

    20 inches

    Internal Rim Width Range

    Minimum: 19 millimeters



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