SKU: 63707322695

Vittoria Air-Liner Insert MTB 1.9"-4.0"

Sale price$49.58 Regular price$55.09
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Ships within 48 hours · Estimated delivery Aug 10 - Aug 15

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Description

Vittoria Air-Liner Insert MTB 1.9"-4.0"Punctures are a fact of life, but the Air Liner MTB keeps a mid run flat from imposing an insurmountable time penalty, an auto DNF, or a hike a bike to the transition. The Air Liners high density structure keeps your tire rideable for up to an hour after a flat enough time to clear a stage or hustle back to the trailhead. Your ambitions dont have to deflate just because your tire did. The Air Liner isnt just an emergency flat solution it also helps

Punctures are a fact of life, but the Air-Liner MTB keeps a mid-run flat from imposing an insurmountable time penalty, an auto-DNF, or a hike-a-bike to the transition. The Air-Liner’s high-density structure keeps your tire rideable for up to an hour after a flat – enough time to clear a stage or hustle back to the trailhead. Your ambitions don’t have to deflate just because your tire did.

The Air-Liner isn’t just an emergency flat solution – it also helps prevent punctures by preventing rim strikes. As it compresses, the polymer material ramps-up like a shock. Trail chatter is muted, root lattices are smoothed, and the big hits and square edges of rock gardens are cushioned. The Air-Liner’s cross-section keeps the tire’s contact surface fluid and flexible, but it also increases lateral stability by buttressing the sidewalls.

  • The Vittoria Air-Liner is a tire insert, designed for use in tubeless tires.
  • Air-Liner increases control, durability, performance, and protection of both tire and wheel.
  • Compatible with any wheel size up to 29”, any tubeless valve, and tire widths from 1.9-4.0”.
  • More grip, in both climbing and descent
  • Enhanced rim protection
  • Allows for lower tire pressures
  • Prevents bead burping effect
  • Absorbs high-frequence vibrations. Comfort increased.
  • Allows for tires with lighter casing
  • Ride home with dead flat.

The Air-Liner is a high-quality polymer insert, which replaces a portion of the air volume in the tire. This trait, combined with the shape, provides a tunable system that enhances your ride performances. The Air-Liner destroys the traditional compromise of stability vs. grip, and allows your tires to remain stable, grippy, and controlled, even at low pressures.The Air-Liner is designed using a round cross section, with channels on the top and bottom. The top channel provides room for the tunable air chamber that sits directly beneath the tire tread. Upon impact, the corner edges of the channel flex first, and progressively build to the thicker portion, as the tire is compressed. This allows the tread to remain flexible, which increases traction, without sacrificing impact resistance. The bottom channel allows for easy fine-tuning of the air chamber, and allows for full compatibility of all valve core styles. The round cross-section shape mimics the natural shape of the tire, and supports a greater contact area within the sidewalls of the tire casing. Side-to-side tire stability is increased, yet the tread remains soft and grippy. This improves cornering, climbing, and braking performance

• Protection: Both wheel and tire are protected by the Air-Liner insert. By cushioning impacts from within the tire, your expensive rim remains protected, while eliminating flats caused by rim-strike impacts.

• Control: The Air-Liner insert replaces air volume in the tire. The reduced air volume allows the tire to compress and rebound in a more controlled manner compared to standard tubeless systems.

• Performance: Side-to-side tire stability is increased, yet the tread remains soft and grippy. This improves cornering, climbing, and braking performance.

Durability: This highly durable polymer material has been tested to a projected life of 2000 hours under normal riding, or 1 full hour of run-flat downhill use under a typical rider.

The Air-Liner MTB is available in 3 sizes and is compatible with all makes and models of tires.

  • size S 35mm for tyres 1.9" - 2.25" - weight 90g*
  • size M 45mm for tyres 2.25" - 2.50" - weight 165g*
  • size L 50mm for tyres 2.5" - 2.7" - weight 200g*
  • size XL 55mm for tyres 2.7" - 4.0" - weight 234g*

* Stated weight is prior to trimming to your wheelsize requirement.

For best results use Vittoria Universal Sealer - Ammonia Free & Latex Free.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 63707322695

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Channan
Battle Creek, US
★★★★★ 5
Nice for my 4 year old
Color: Pink
My daughter enjoys this and easy time charge after ...definitely loving this item
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Reviewed in the United States on May 27, 2026
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Sharon
Dallas, US
★★★★★ 5
Easy to switch the brush!
Color: Purple
My kids love them, it’s easy to switch the brush! Easy to charge! The princess and unicorn are both their favorite!
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Reviewed in the United States on April 29, 2026
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Jeison Lardi
Birmingham, US
★★★★★ 3
Battery/charging issues
Color: Blue
This is my second purchases b/c my son loves it but it barely lasted a year before the battery crapped out. The first one I bought lasted about the same as well.
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Reviewed in the United States on April 16, 2026
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Stacie Ay
Birmingham, US
★★★★★ 5
Great toothbrush! Bought in january2025(it’s December 2025 now) Yay!
Color: Light Blue, Color: Light Blue
I bought this electric toothbrush in January of this year (2025) and it still works Great!! I bought it for my son and he brushes his teeth at least twice a day, sometimes more (he has gotten a hold of it a couple times and was trying to brush his stuffed animals mouth with it..haha..) and it is still going strong!! The battery life lasts Super good!! I don’t even remember the last time I charged it.. I love that it comes with multiple tooth brush heads to switch it out with and there are different settings to choose to brush with like soft, clean, massage, ect. I like the baby blue color because I bought it for my son. We have traveled and moved with this tooth brush and I am Super happy with it and would Definitely recommend!! Great price too!! Good power, gets teeth nice and clean!! And it’s a good size for my toddler/young son.
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Reviewed in the United States on December 4, 2025
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Samone
Alexandria, US
★★★★★ 5
Great electric toothbrush
Color: Light Blue
Had for over a year for my kid. The timer is amazing. It’s set in 4 - 30 second increments to help get a better clean. Battery is pretty long lasting. I’ve only charged maybe 3-4 times and he brushes twice a day. Super easy to use even for him. Love that it comes with extra heads. Would definitely buy again.
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Reviewed in the United States on May 7, 2026

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