Vittoria Air-Liner Road Test

Published: 2021-11-05 by Jarno Bierman
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Vittoria Air-Liner Road tubeless insert

The Vittoria Air-Liner Road is an extremely light, re-usable, run-flat tire insert that solves some of the shortcomings of tubeless tires at no additional performance cost. Of course, we're always skeptical of products that solve many problems as there must be a trade-off somewhere. This time it seems different, as except for the 24 grams (size S) weight increase, most of the claims appear to be true.

The first problem the Air-Liner Road solves is inflating tubeless tires, which can be a real problem with some tires and rim combinations. The Air-Liner solves this problem by making sure the beads are pre-seated and inflating the tire becomes extremely easy.

In case of a puncture, the Air-Liner keeps the beads locked into place and even allows you to run on a flat tire in emergency conditions. Although run-flat riding isn't recommended (and rolling resistance will sky-rocket), it'll give you the ability to let the tire sealant do its job and re-inflate the tire easily. If the puncture is too big for the sealant to work, you'll at least be able to get home at a modest speed.

The special thing about the Air-Liner Road is that when the tire is inflated, the Air-Liner shrinks, and it isn't in contact with the tire anymore. There should be no adverse effect on rolling resistance when there is no contact between the tire and Air-Liner. See the animation below, which we found on Vittoria's website, clearly showing how it works. For more information about the Air-Liner Road we suggest to visit Vittoria's Air-Liner Road page that contains a lot more pictures, videos, and recommendations.

Vittoria Air-Liner animnation copyright

This test was requested, supported, and voted for by our Pro Members. We've tested the Air-Liner Road with 3 road bike tires: Vittoria Corsa Speed G+ 2.0 TLR, Vittoria Corsa G+ 2.0 TLR, and the Continental Grand Prix 5000 S TR. We've averaged the data from those 3 tires and made that available for free for anyone. There were some slight differences between the individual tires but nothing that could affect the outcome of this test.

Pro Members can open the individual tire data and dig into the results further.

Installation and Removal

Vittoria Air-Liner Road package contents copyright

The Air-Liner Road comes in a nice bag together with a special tubeless valve and a short manual. The special tubeless valve should be used as it has some extra holes that make sure you can easily add sealant.

Vittoria recommends using their sealant or any other sealant that does not contain ammonia, which might damage the Air-Liner.

The Air-Liner Road currently is available in 3 sizes: S, M, and L. See below for Vittoria's chart with their recommendations on which size to use based on tire size and rim width.

Installation and removal of the Air-Liner Road can be quite difficult but can vary greatly depending on the exact rim width and tire size combination. Installation of the Air-Liner is easier than removing it, but we've found a trick that makes it a bit easier and isn't found in the Vittoria manual (see below).

Vittoria also offers a toolkit with some special tools that make removing the tire a bit easier. This toolkit helps make your life easier, but whether you need it depends on your exact tire and rim combination. Below is the size chart found on Vittoria's website with their recommendations based on tire size and rim width.

Vittoria Air-Liner Road size chart copyright

We've tried both an 18 mm and 22 mm rim with 25 mm tires, and our recommendation on whether you need the toolkit is:

When you're in the higher end of the size chart (size S, 25 or 26 mm tire, 20 or 21 mm rim), you probably don't need the toolkit. When you're in the middle (size S, 25 or 26 mm tire, 18-19 mm rim), you probably need the toolkit. When you're at the lower end of the chart (size S, 23 or 24 mm tire, 15 - 17 mm rim), we're quite sure you also don't need the toolkit as it won't help to get the tire off; it can only be removed by cutting the tire off with wire cutters.

The advantage of a tighter fit will be more pressure on the beads when run flat, which is better, but the right size is a trade-off between functionality and ease of installation/removal. If you don't mind cutting the tire off, get it as tight as you can.

Our tip for easier installation and removal is to pre-seat the beads when installing and keep one bead seated for removal (more below). This gives you about 3 mm of extra room within the rim and will help significantly as more room = easier installation.

Installation tip: This one isn't as important as the removal tip, but when you have a hard time getting it on, it definitely helps. Before mounting the Air-Liner, install the tire without the Air-Liner and inflate it so both beads get seated. Then release the air and gently unseat one bead, and make sure the other bead stays seated. Now get some tire levers and get the bead off the rim and install the Air-Liner.

Removal tip: ALWAYS use this one as it always helps to make removal easier. When you've deflated the tire, do not unseat both beads but make sure 1 bead stays seated. When you only unseat 1 bead, there will be more room left over for the Air-Liner and getting the other bead over the rim edge will be much easier.

Test Set Up and Conditions

All rolling resistance tests were performed with our standard test protocol. This is the same protocol used for nearly all of the rolling resistance data found on this website.

We've used the Air-Liner Road in the "S" size and a 22 mm rim for this test's final data, which technically is 1 mm larger than Vittoria's recommendation.

We also did some tests with an 18 mm rim, and the only difference can be found in the 0 psi / 0 bar test results where the 18 mm rim rolls a bit faster because it fills the tire/rim better when run flat.

If you don't mind the extremely hard removal, a tighter fitting Air-Liner always seems better.

Rolling Resistance Test Conditions

  • Speed of 8 m/s - 28.8 km/h - 18 mph
  • Total wheel load of 42.5 kg / 94 lbs
  • 21.8 mm internal width rim
  • 20 ml sealant
  • Temperature between 21.5-22.5 °C / 71-72 °F
  • Diamond plate drum surface
  • 77 cm drum diameter

Test Results - Air-Liner Road Average of 3 Tires

We've tested the Vittoria Air-Liner Road S with the following tires

  • Vittoria Corsa Speed G+ 2.0 25-622
  • Vittoria Corsa G+ 2.0 TLR 25-622
  • Continental Grand Prix 5000 S TR

To keep the test results easy to understand, we've averaged the test results of the 3 different tires:

No Air-Liner Air-Liner Road S
Air Pressure Watts Watts
100 psi / 6.9 bars 9.8 9.9
80 psi / 5.5 bars 10.9 10.9
60 psi / 4.1 bars 12.6 12.6
40 psi / 2.8 bars 16.6 16.6
20 psi / 1.4 bars Fail 28.1
0 psi / 0 bars Fail 84.4
Average of 3 road bike tires (Speed: 29 kmh / 18 mph, Load: 42.5 kg / 417 N)

The averaged test results clearly show there is no rolling resistance penalty when using the Air-Liner Road. We tried to run the tests down to 20 psi / 1.4 bars without the Air-Liner, but all tires failed because air was lost through the beads. With the Air-Liner, there was still 20 psi / 1.4 bars of pressure after completing the tests.

Rolling resistance at 20 psi / 1.4 bars still looks quite good, although it looked like the wheel was already running on the rim edges. It definitely was running on the rim edges at zero pressure as the Air-Liner isn't stiff enough to support the load. At zero air pressure, rolling resistance sky-rockets to about 85 watts for a single tire.

Although we did test at zero air pressure, we're not sure if tubeless road bike tires filled with sealant will ever drop to zero. Of course, it will if the cut is big enough, but it might very well stop somewhere between 20 and 60 psi for many other punctures as the sealing capability of tubeless sealant depends a lot on the air pressure.

Test Results - Individual Rolling Resistance Data (Pro Members)

The next section is only accessible by our highly valued Pro Members. This section includes all test data of the individual tires used for the Air-Liner Road tests: Vittoria Corsa Speed G+ 2.0 TLR, Vittoria Corsa G+ 2.0 TLR, and the Continental Grand Prix 5000 S TR.


Our main conclusion is that using the Vittoria Air-Liner Road does not harm rolling resistance. Rolling resistance is exactly the same at all air pressures, even down to 40 psi / 2.8 bars which is a pressure that's already way too low for a 25 mm road bike tire.

With the Air-Liner Road, we could complete the tests at 20 psi / 1.4 bars with full pressure remaining after the tests. Without the Air-Liner, all tires failed the 20 psi / 1.4 bars tests as there was air loss through the beads. Even though the tire only runs forward on the rolling resistance machine, this indicates the Air-Liner helps keep the beads seated, which is a considerable performance and safety advantage.

We do see a potential issue when the air pressure is between 40 psi / 2.8 bars and 60 psi / 4.1 bars. At those air pressures, the Air-Liner will have shrunk to quite a small size, and we're unsure if it can support the bead when going through turns at high loads. Just be careful and know the Air-Liner can't protect you under all circumstances.

Although you can technically run on flat tires with the Air-Liner, be aware that you'll be running on the rim edges as the Air-Liner foam isn't stiff enough to support the load. It might become costly if you have some nice expensive wheels as we're not sure the rim edges of expensive wheels can survive that.

The ability to always reinflate your tires is probably the strongest point of the Air-Liner Road. If you have enough sealant in your tires, you probably can recover from quite big punctures as long as you can reinflate the tire and slowly build up the pressure. Carrying a spare tube will be useless as we're quite sure you can't remove the Air-Liner at the side of the road.

We're curious about real-life experiences with the Air-Liner Road. Have you used these? Feel free to leave a comment.


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Road Bike Rolling Resistance Reviews
Excludes previous models/discontinued tires
Visit the road bike overview to view all
Brand Model Watts
VittoriaCorsa Speed G+ 2.0 (TLR)7.0 W
ContinentalGrand Prix 5000 TT TdF7.2 W
SchwalbePro One TT TLE Addix7.5 W
ContinentalGrand Prix 5000 S TR8.4 W
MichelinPower Cup TLR8.6 W
MichelinPower Time Trial8.6 W
VeloflexRecord (silica compound)9.0 W
VittoriaCorsa Speed (tubular)9.1 W
ContinentalGrand Prix 5000 S TR (tanwall)9.6 W
ZippTangente Speed Tubeless9.6 W
SpecializedTurbo RapidAir 2Bliss Ready9.7 W
ContinentalGrand Prix TT9.9 W
ContinentalGrand Prix 500010.0 W
MichelinPower Road TLR10.1 W
SpecializedTurbo Cotton10.1 W
PirelliP Zero Velo TT10.2 W
ContinentalGrand Prix SuperSonic10.2 W
SchwalbePro One TLE Addix10.2 W
PirelliP Zero Velo Race TLR SL10.3 W
VeloflexCorsa Race TLR10.6 W
MichelinPower Cup10.6 W
MichelinPower Competition10.9 W
ContinentalGrand Prix Force II11.0 W
EnveSES Road Tire Tubeless11.4 W
BontragerR4 32011.5 W
ZippTangente Speed11.6 W
MavicYksion Pro UST Tubeless11.7 W
PirelliP Zero Velo Race TLR11.7 W
ContinentalGrand Prix Attack II11.7 W
ChallengeStrada Pro HTLR11.8 W
VeloflexCorsa Evo TLR11.9 W
HutchinsonFusion 5 Galactik TLR 11Storm12.0 W
WolfpackRoad Race12.1 W
VittoriaCorsa G+ 2.0 TLR12.2 W
VittoriaCorsa G+ (tubular)12.3 W
VeloflexCorsa Race (clincher)12.3 W
VittoriaCorsa N.EXT TLR12.3 W
MichelinPower Road12.4 W
PirelliP Zero Velo12.5 W
VittoriaCorsa Control G+ 2.0 TLR12.6 W
PirelliP Zero Race12.6 W
SchwalbePro One (tubetype) Addix12.8 W
VittoriaCorsa Elite (tubular)12.9 W
CadexRace Tubeless13.0 W
VittoriaCorsa G+ 2.0 (open)13.0 W
MaxxisPadrone Tubeless Ready13.1 W
MaxxisHigh Road13.2 W
ChallengeStrada Pro13.4 W
SpecializedS-Works Turbo13.4 W
BontragerR3 Hard-Case Lite TLR13.6 W
PirelliP Zero Road13.7 W
PanaracerRace L Evo 313.9 W
GoodyearEagle F1 Tubeless13.9 W
ContinentalGrand Prix14.0 W
ContinentalUltra Sport III14.1 W
VittoriaCorsa Control G+ 2.0 (open)14.1 W
MichelinPro 4 Endurance v214.2 W
ContinentalCompetition (tubular)14.2 W
MichelinPower Endurance14.5 W
ContinentalGrand Prix 4 Season 202214.6 W
PirelliP Zero Velo 4S14.7 W
IRCFormula Pro Tubeless RBCC14.8 W
MichelinPro 4 Service Course14.9 W
MavicYksion Elite15.0 W
VittoriaZaffiro Pro G+ 2.015.2 W
VittoriaRubino Pro G+ 2.015.2 W
ZippTangente Course15.3 W
MichelinKrylion 2 Endurance15.4 W
SchwalbeOne Performance Addix15.4 W
PirelliCinturato Velo TLR15.6 W
SchwalbeOne TLE Performance Addix15.8 W
MichelinLithion 215.9 W
SchwalbePro One HT (tubular)16.1 W
PanaracerRace A Evo 316.4 W
SchwalbeDurano Plus Addix16.4 W
ClementStrada LGG16.9 W
MichelinDynamic Sport17.3 W
PanaracerRace D Evo 317.4 W
SchwalbeDurano18.0 W
SchwalbeLugano II18.0 W
VredesteinFortezza Senso All Weather18.0 W
ContinentalGatorskin19.3 W
ContinentalGator Hardshell19.5 W
SchwalbeDurano DD Addix19.5 W
MichelinPower All Season21.3 W
MaxxisRe-Fuse22.6 W
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Brand Model Watts
ContinentalGrand Prix 5000 S TR 3216.6 W
Rene HerseSnoqualmie Pass TC Extralight 4417.3 W
SchwalbePro One TLE Addix 3419.3 W
ChallengeStrada Bianca Pro HTLR 3619.5 W
ContinentalGrand Prix 5000 TL 3219.8 W
SchwalbeG-One RS Super Race 4020.0 W
PanaracerGravelKing TLC 3520.4 W
PanaracerGravelKing TLC 4020.8 W
ContinentalTerra Speed TR (Protection) 3520.8 W
ChallengeGetaway Pro HTLR 4021.2 W
Rene HerseSnoqualmie Pass TC 4421.2 W
TufoGravel Thundero 4021.2 W
TufoGravel Speedero 4021.3 W
ContinentalSpeed King CX RaceSport 3221.4 W
ContinentalTerra Speed TR (Protection) 4021.6 W
PanaracerGravelKing TLC 3222.8 W
PanaracerGravelKing SS TLC 4023.0 W
PirelliCinturato Gravel H 4023.3 W
Rene HerseSnoqualmie Pass TC Endurance 4423.4 W
SpecializedRoubaix Pro 2Bliss Ready 3223.5 W
TufoGravel Swampero 4023.9 W
SpecializedPathfinder S-Works 2Bliss Ready 4224.0 W
MichelinPower Gravel 3524.1 W
SpecializedPathfinder Pro 2Bliss Ready 4224.1 W
Rene HerseBarlow Pass TC 3824.2 W
PanaracerGravelKing SK TLC 4024.7 W
ChallengeStrada Bianca Race TLR 3625.0 W
PirelliCinturato Cross H 3325.2 W
MichelinPower Gravel (v2) 4025.7 W
ChallengeGrifo Pro 3325.7 W
ContinentalTerra Trail TR 4026.0 W
HutchinsonOveride 3526.0 W
PirelliCinturato Gravel M 4026.5 W
WTBRiddler TCS Light 3726.6 W
Rene HerseSteilacoom TC 3826.9 W
PanaracerGravelKing Plus TLC 3526.9 W
VittoriaTerreno Dry TNT G+ 2.0 3327.0 W
ZippG40 XPLR 4027.1 W
VittoriaTerreno Zero TNTG+ 2.0 3727.2 W
PirelliCinturato Velo 3527.6 W
TeravailCannonball Light & Supple 4227.7 W
SchwalbeG-One R Super Race 4028.0 W
Rene HerseSnoqualmie Pass TC Endurance Plus 4428.1 W
SchwalbeG-One Bite Super Ground SpeedGrip 4028.6 W
WTBResolute TCS Light 4228.6 W
SchwalbeG-One Speed Super Ground V-Guard SpeedGrip 4028.6 W
ChallengeGravel Grinder 3328.7 W
MaxxisRambler EXO/TR 120 TPI 4028.8 W
PanaracerGravelKing SS Plus TLC 4029.3 W
VittoriaTerreno Mix TNT G+ 2.0 3329.4 W
WTBNano TCS Light 4029.6 W
PirelliCinturato Cross M 3329.7 W
SchwalbeG-One Ultrabite TLE SpeedGrip 4029.8 W
SchwalbeG-One Allround Super Ground SpeedGrip 4029.8 W
WTBByway TCS Light SG2 4030.4 W
VittoriaTerreno Dry TLR G+ 2.0 4030.4 W
VittoriaTerreno Wet TNT G+ 2.0 3332.2 W
MaxxisRe-Fuse Gravel 4033.9 W
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Excludes previous models/discontinued tires
Visit the MTB overview to view all
Brand Model Watts
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SchwalbeThunder Burt Super Ground Addix Speed20.2 W
ContinentalRace King Protection20.2 W
ContinentalRace King RaceSport22.4 W
SchwalbeRocket Ron LiteSkin Addix Speed22.6 W
SchwalbeRacing Ralph LiteSkin Addix Speed25.0 W
SchwalbeRacing Ralph Super Race Addix Speed26.0 W
ContinentalRace King Performance26.3 W
SchwalbeRocket Ron TL-E Addix Speed26.7 W
SchwalbeRacing Ralph 2019 TLE Addix Speed27.0 W
ContinentalRace King Sport27.0 W
SchwalbeRocket Ron TL-E Addix SpeedGrip27.2 W
VittoriaMezcal TNT G+ 2.028.0 W
SchwalbeRacing Ray TLE Addix SpeedGrip28.3 W
SchwalbeRacing Ralph TL-E Addix SpeedGrip28.7 W
ContinentalCross King Protection 29x2.229.0 W
VittoriaBarzo TNT G+ 2.030.0 W
SpecializedS-Works Fast Trak 2BR T5/T730.5 W
MaxxisAspen EXO TR30.6 W
IRCMythos XC30.8 W
MaxxisRekon Race EXO TR31.1 W
SpecializedS-Works Ground Control 2BR31.3 W
MaxxisIkon 3C MaxxSpeed TLR31.5 W
ContinentalMountain King II RaceSport31.5 W
ContinentalCross King Protection 29x2.332.9 W
MichelinJet XCR33.2 W
MaxxisArdent Race 3C EXO TR35.1 W
MichelinForce XC35.3 W
KendaSmall Block Eight35.6 W
MichelinForce AM37.4 W
MaxxisIkon eXCeption Silkworm38.2 W
VittoriaAKA40.7 W
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Brand Model Watts
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SchwalbeMarathon Almotion (OneStar)17.1 W
VittoriaVoyager Hyper17.7 W
ContinentalContact Urban18.4 W
CompassBon Jon Pass18.6 W
SchwalbeMarathon Supreme19.1 W
SchwalbeMarathon Almotion Addix19.4 W
PanaracerPasela PT (ProTite)20.6 W
ContinentalSport Contact II20.6 W
SchwalbeMarathon (GreenGuard)21.3 W
SchwalbeEnergizer Plus21.5 W
CSTE-Series Reach21.9 W
SchwalbeMarathon Almotion TLE Addix22.7 W
ContinentalTop Contact II24.2 W
ContinentalContact II24.3 W
SchwalbeMarathon Racer24.6 W
SchwalbeKojak24.8 W
ContinentalCity Ride II25.1 W
SchwalbeMarathon Plus25.5 W
SchwalbeMarathon Mondial Evo26.7 W
VredesteinPerfect-E27.3 W
SchwalbeMarathon E-Plus27.4 W
ContinentalTop Contact Winter II28.5 W
VittoriaRandonneur32.4 W
ContinentalE.Contact33.4 W
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Brand Model Watts
SchwalbeJumbo Jim LiteSkin PaceStar36.9 W
SchwalbeJumbo Jim SnakeSkin38.6 W
SpecializedFast Trak Fat43.4 W
VeeRubber Vee 845.8 W
SurlyLarry48.4 W
45NRTHVan Helga51.0 W
45NRTHHusker Du51.7 W
SurlyLarry 27 TPI53.0 W
VittoriaBomboloni TNT53.9 W
MaxxisMammoth54.7 W
PanaracerFat B Nimble55.4 W
KendaJuggernaut Pro59.2 W
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