Vittoria Air-Liner MTB Tyre Insert - Extra Large 2.7 / 4.0

Name: Vittoria Air-Liner MTB Tyre Insert - Extra Large 2.7 / 4.0
Brand: Vittoria
SKU: nsvjv7ng7e
Availability: InStock

Vittoria Air-Liner is a premium foam-based tubular insert engineered for tubeless mountain bike ti...

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Product Information

Full details

The Vittoria Air-Liner Extra Large is designed for mountain bikers riding Plus and Fat bike tires (2.7 to 4.0 inches) who demand maximum rim protection and enhanced handling on technical terrain. By utilizing a high-quality polymer insert, it allows riders to run lower tire pressures for improved grip and vibration damping while significantly reducing the risk of tire burping or rim damage. While the insert offers exceptional performance, it does require a more involved installation process compared to standard tubeless setups.

All features

Model Part Number	TYVAL01XL777BX
Brand	Vittoria

Extended Product Information

FAQs

Does the Air-Liner work with any tubeless sealant?

It is compatible with most standard tubeless sealants, but Vittoria recommends using ammonia-free sealants to ensure the longest lifespan for the polymer foam.

Can I reuse the insert when I change tires?

Yes, the Air-Liner is designed for a long lifespan of up to 2,000 hours and can be moved to a new tire as long as the size remains compatible.

Is the Extra Large size compatible with 29-inch wheels?

The Extra Large size is specifically designed for Plus and Fat bike tire widths; please check your rim and tire width specifications to ensure proper fitment.

Do I need a special pump to seat the tire?

While a floor pump may work, an air compressor or a tubeless-specific booster pump is highly recommended to seat the beads quickly against the Air-Liner.

What should I do if the zip tie breaks during installation?

If the zip tie fails, replace it with a high-quality, similarly sized nylon zip tie to ensure the insert remains a continuous loop inside the tire.

Troubleshooting

Difficult to seat the tire bead

Ensure the Air-Liner is pushed completely into the deepest part of the rim channel while mounting the final section of the tire bead.

Sealant won't flow through the valve

Ensure you are using a valve stem with side-drilled ports or a compatible insert-specific valve that prevents the insert from blocking the airflow.

Pros and Cons

Pros

Significantly increases rim lifespan
Allows for lower tire pressure for better traction
Effective at preventing tire burping during aggressive riding
Highly durable material lasts up to 2,000 hours of normal use

Cons

Installation is more difficult than standard tubeless tires
Adds rotational weight to the wheelset
Requires specific sizing for tire and rim combinations

Setup, Compatibility & Care

Installation requires patience. The insert is sized to fit specific rim diameters and is secured using the provided zip tie.

Prepare the wheel by cleaning the rim and applying fresh tubeless tape.
Stretch the Air-Liner insert around the rim and secure the ends together with the provided zip tie, trimming the excess.
Install one bead of the tire onto the rim.
Carefully seat the Air-Liner insert into the rim channel.
Install the second tire bead, using tire levers carefully to avoid damaging the foam or the tire casing.
Add sealant through a valve core that is compatible with insert airflow.

Care involves inspecting the insert for wear during routine tire changes. While the polymer is resistant to standard tubeless sealants, it is recommended to avoid ammonia-based sealants if possible to maximize the lifespan of the foam.