Airless Support
Find your Airless tire size
NOTE: Tannus Airless tires are compatible with Clincher rims but NOT with Tubular or Hookless rims
1. Measure Inner Rim Width
Your inner rim width determines which tires will fit your bicycle as well as which locking pins you will need for a proper fit.
HOW TO FIND THE INNER RIM WIDTH
METHOD 1: Identify the ETRTO measurement on the rim. The ETRTO measurement is shown on the rim stickers with two numbers.
Example: 622-15C. The number 15 corresponds to the millimeters of the internal channel of the rim.
METHOD 2: Remove the tire and measure the inside of the channel with a caliber or ruler.
2. Select Airless size
ATTENTION: Remember that it is essential to have a rim with an internal channel corresponding to that of the Airless tyre. Even a millimeter of difference can make assembly impossible.
| AIRLESS SIZE | INNER RIM CHANNEL WIDTH* | WEIGHT | EQUIVALENT PRESSION** |
| 700x40C (40-622) - SHIELD | 19-21 mm | 730 g | 4,4 Bar |
| 700x32C (32-622) - SHIELD | 18-20 mm | 650 g | 4,4 Bar |
| 700x28C (28-622) - SEMI SLICK | 14-16 mm | 460 g | 7,2 Bar |
| 700x28C (28-622) - PORTAL | 19-21 mm | 495 g | 7,2 Bar |
| 700x25C (25-622) - NEW SLICK | 16-18 mm | 434 g | 7,8 Bar |
| 700x23C (23-622) - SLICK | 13-15 mm | 370 g | 7,8 Bar |
| 26"x2.00 (51-407) - E-BIKE | 32-34 mm | 870 g | 7 Bar |
| 26"x2.125 HIGH LOAD (55-559) - CARGO | 29-31 mm | 1360g | 6 Bar |
| 26"x1.75 (44-559) - RAZOR BLADE | 17-20 mm | 800 g | 4,6 Bar |
| 26"x1.3/8 (35-590) - SHIELD | 18-20 mm | 620 g | 4,4 Bar |
| 24"x1.75 (44-507) - SHIELD | 19-21 mm | 670 g | 5,5 Bar |
| 24"x1.3/8 (35-540) - WHEELCHAIR | 18-20 mm | 460 g | 4,1 Bar |
| 24"x1.00 (25-540) - WHEELCHAIR | 18-20 mm | 410 g | 7,2 Bar |
| 22"x1.3/8 (35-501) - WHEELCHAIR | 18-20 mm | 390 g | 4,1 Bar |
| 20"x2.00 (51-349) - E-BIKE | 32-34 mm | 675 g | 6 Bar |
| 20"x2.125 HIGH LOAD (55-406) - CARGO | 29-31 mm | 1200g | 6 Bar |
| 20"x1.50 (40-406) - SHIELD | 19-21 mm | 570 g | 5,5 Bar |
| 20"x1.25 (32-406) - MINI VELO | 17-20 mm | 360 g | 6 Bar |
| 16"x1.25 (32-349) - MINI VELO | 17-20 mm | 310 g | 6 Bar |
| 8"x2.00 (200x50) - E-SCOOTER | XIAOMI RIM | 520 g |
* ATTENTION: This parameter of fundamental importance for proceeding with the assembly of Tannus Airless
** The pressure, as there is no air in the conventional way, is to be referred to the sensation of an equivalent pressure in traditional tyres
Your inner rim width determines which tires will fit your bicycle as well as which locking pins you will need for a proper fit.
HOW TO FIND THE INNER RIM WIDTH
METHOD 1: Identify the ETRTO measurement on the rim. The ETRTO measurement is shown on the rim stickers with two numbers.
Example: 622-15C. The number 15 corresponds to the millimeters of the internal channel of the rim.
METHOD 2: Remove the tire and measure the inside of the channel with a caliber or ruler.
ATTENTION: Remember that it is essential to have a rim with an internal channel corresponding to that of the Airless tyre. Even a millimeter of difference can make assembly impossible.
| AIRLESS SIZE | INNER RIM CHANNEL WIDTH* | WEIGHT | EQUIVALENT PRESSION** |
| 700x40C (40-622) - SHIELD | 19-21 mm | 730 g | 4,4 Bar |
| 700x32C (32-622) - SHIELD | 18-20 mm | 650 g | 4,4 Bar |
| 700x28C (28-622) - SEMI SLICK | 14-16 mm | 460 g | 7,2 Bar |
| 700x28C (28-622) - PORTAL | 19-21 mm | 495 g | 7,2 Bar |
| 700x25C (25-622) - NEW SLICK | 16-18 mm | 434 g | 7,8 Bar |
| 700x23C (23-622) - SLICK | 13-15 mm | 370 g | 7,8 Bar |
| 26"x2.00 (51-407) - E-BIKE | 32-34 mm | 870 g | 7 Bar |
| 26"x2.125 HIGH LOAD (55-559) - CARGO | 29-31 mm | 1360g | 6 Bar |
| 26"x1.75 (44-559) - RAZOR BLADE | 17-20 mm | 800 g | 4,6 Bar |
| 26"x1.3/8 (35-590) - SHIELD | 18-20 mm | 620 g | 4,4 Bar |
| 24"x1.75 (44-507) - SHIELD | 19-21 mm | 670 g | 5,5 Bar |
| 24"x1.3/8 (35-540) - WHEELCHAIR | 18-20 mm | 460 g | 4,1 Bar |
| 24"x1.00 (25-540) - WHEELCHAIR | 18-20 mm | 410 g | 7,2 Bar |
| 22"x1.3/8 (35-501) - WHEELCHAIR | 18-20 mm | 390 g | 4,1 Bar |
| 20"x2.00 (51-349) - E-BIKE | 32-34 mm | 675 g | 6 Bar |
| 20"x2.125 HIGH LOAD (55-406) - CARGO | 29-31 mm | 1200g | 6 Bar |
| 20"x1.50 (40-406) - SHIELD | 19-21 mm | 570 g | 5,5 Bar |
| 20"x1.25 (32-406) - MINI VELO | 17-20 mm | 360 g | 6 Bar |
| 16"x1.25 (32-349) - MINI VELO | 17-20 mm | 310 g | 6 Bar |
| 8"x2.00 (200x50) - E-SCOOTER | XIAOMI RIM | 520 g |
* ATTENTION: This parameter of fundamental importance for proceeding with the assembly of Tannus Airless
** The pressure, as there is no air in the conventional way, is to be referred to the sensation of an equivalent pressure in traditional tyres
How to install Airless
Everything you need to install the tires is included in the box. You get the S-Tool and 3 different PIN sizes to allow for the variation in your rim width.
1. Select the correct PIN size
Usually the correct PIN size for your rim is your inside rim width channel (A) + 3.5mm.
Example: Inner Rim Width 20 mm. Correct PIN 23,5 mm (20+3,5 mm)
Alternatively, just insert, with the help of pliers, a PIN into the rim channel perpendicular to it. The correct PIN size must curve slightly inside the rim and avoid any slipping along it.
The size of the PIN is indicated on the PIN itself.
2. Insert the PINs into the Airless tire
There are around 40 insertion points around the tire that ensure the tire is secured safely to the rim. Insert the correct PINs, you selected in step 1, into each of these holes points. This ensures there is no rolling of the tire on the rim when cornering.
3. Push PINs inside the rim
Once the tire is beaded around the rim, use the supplied S-Tool to push the PINS into the rim channel. Correctly installed PINs should NOT be visible once the tire is mounted.
How to install Airless Tire
FAQs AIRLESS
Most common questions about Airless
What are Tannus Airless Tires?
Tannus Airless Tires are made of a patented material called Aither. It’s a high quality foam-like polymer that allows them to be completely solid but ride like normal bike tires.
Are they an Insert?
Tannus Tires are not insert. They are an actual tire. Do I need my own tire? Keep your wheelset but you won’t need your rim strip, tube or tire.
If you are looking for inserts, check this out:
What materials are airless tires made of?
Tannus tires are made of a material called Aither. Both the material and the PIN locking system are patented worldwide. It is a constantly evolving material.
Why get Airless Tires?
You will never get a flat tire again.
How do they compare to a regular tire?
Unlike other solid tires, Tannus has made technological advances that make the tires lightweight, comfortable and durable. Most people don’t notice a difference when they switch except they don’t get flats or have to worry about psi.
Will they make me slower?
Tannus Airless Tires stop flats. While most people don't feel a difference when riding, some riders notice a decrease in speed up to 5-10%.
How long do they last?
It depends on use but they usually last from 6.000 to 10.000 km
Are they heavy?
The weight varies by size. Usually the weight is comparable if not less than the classic tire-tube combination
Are they good for off-road?
Tannus Tires are for road. If you’re looking for an off road option check out our inserts:
Do I need a special rim?
Absolutely not. Tannus Airless mounts on all rims except tubular rims and hockless rims.
Recommended maximum supported weight?
The maximum weight we recommend for Tannus tires is to be kept under 150kg for the pair, therefore 75kg per tyre.
For CARGO tyres only, the maximum recommended weight per wheel is 130 KG
What is the most important part of the assembly?
The choice of PINs is the key to the assembly process. In the assembly kit you should find 3 different sizes of PINs with 3 different colors. To choose the one that best suits your tire.
The basic idea is to choose the PIN that, when positioned perpendicularly inside the rim channel, does not "move" along it. If it moves and doesn't fit, it means it's too short. However, if you cannot turn it inside the circle with pliers despite your efforts, it means it is too long.
Usually, the right PIN is 3.5mm wider than the inner rim channel.
Two PINS fit into the circle, one is loose and one is tight. Which one should I use?
Always the tight one. In this way safety is maximum and lateral bead breaking is eliminated.