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Specs

Tire Size: 26 x 4.0-4.8 (ISO 559x100-122)

Tube Size Required: 26 x 3.0-3.5 inch

Weight: 550g

Puncture Protection: 15mm under tread

Sidewall Protection: 2mm

Material: Aither multi-cell rebounding foam compound

Minimum Rim Width: 19mm inner

Color: Red

Sold As: Single insert

Run-Flat Capable: No (fat tire size)

Tubed or Tubeless: Tubed setups only

FAQ

Which tires will this Armour insert fit?: This Armour fits 26 x 4.0-4.8 inch fat tires (ISO 559x100-122). It is sized for fat bikes, snow bikes, sand bikes, and 26-inch fat tire e-bikes.

What tube size do I need with this Armour?: You need a 26 x 3.0-3.5 inch inner tube, which is one size smaller than the tire. Tannus Armour displaces space inside the tire, so a properly downsized tube is required for correct fit.

Does this fat tire Armour have run-flat capability?: No. Fat tire sizes (20x3.0-4.0, 20x4.1-4.8, 24x3.0-4.0, 26x4.0-4.8) do not have run-flat capability. You will still get full 15mm puncture protection and pinch-flat protection while riding, but a flat will end the ride.

What is Aither and what protection does it provide?: Aither is Tannus's patented multi-cell rebounding foam compound. It provides 15mm of puncture protection under the tread and 2mm of sidewall protection, eliminating roughly 90% of common flats while still letting the tire roll and absorb bumps normally.

Best For

Fat bike riders, snow bikers, sand riders, and 26-inch fat tire e-bike owners running tires in the 4.0 to 4.8 inch width range who want to eliminate pinch flats and rim damage while running the low pressures that make fat tires work.

Tannus Armour Tire Insert - 26 x 4.0-4.8 | Single Reviews:

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