








Tannus Armour Size Chart
TIRE/ARMOUR SIZE | TUBE SIZES | GRAMS |
20x1.75-1.95 | 20x1.0-1.5 | 190 |
20x1.95-2.5 | 20x1.5-1.95 | 220 |
20x3.0-4.0 | 20x2.5-3.0 | 230 |
20x4.1-4.8 | 20x3.5-4.0 | 230 |
TIRE/ARMOUR SIZE | TUBE SIZES | GRAMS |
24x1.95-2.5 | 24x1.5-1.95 | 270 |
24x3.0-4.0 | 24x2.5-3.0 | 480 |
26x1.6-1.9 | 26x1.1-1.5 | 260 |
26x1.95-2.5 | 26x1.5-1.95 | 300 |
TIRE/ARMOUR SIZE | TUBE SIZES | GRAMS |
26x4.0-4.8 | 26x3.0-4.0 | 550 |
27.5x1.95-2.5 | 27.5x1.5-1.95 | 310 |
27.5x2.6-3.0 | 27.5x1.9-2.3 | 330 |
29x1.95-2.5 | 29x1.5-1.95 | 320 |
TIRE/ARMOUR SIZE | TUBE SIZES | GRAMS |
29+x2.6-3.0 | 29x1.9-2.3 | 350 |
700x28-34c | 700x18-23c | 200 |
700x35-40c | 700x23-28c | 230 |
700x42-47c | 700x28-32c | 290 |
PUNCTURE PROTECTION
RUN-FLAT TECHNOLOGY
EASIER INSTALLATION
Eliminates 90% of all bike tire punctures. Tannus Armour provides 15mm of puncture protection on the top, as well as 2mm of sidewall protection. This makes it the perfect solution for E-bikes, Road bikes, and more.
If you get a flat during the ride, Tannus Armour allows you to ride a few miles on gentle terrain, without hurting your rim.*
*Does not apply to the following sizes: 20x3.0-4.0, 20x4.1-4.8, and 26x4.0-4.8.
Tannus Armour is an insert the wraps around your tube inside of your bicycle tire. Installation is a simple additional step when installing your bicycle's tube.



WHAT SIZE DO I NEED?
You must use a smaller tube with Tannus Armour.
Minimum inner rim width needed to install the inserts is 19mm.
TIRE/ARMOUR SIZE | TUBE SIZES | GRAMS |
20x1.75-1.95 | 20x1.0-1.5 | 190 |
20x1.95-2.5 | 20x1.5-1.95 | 220 |
20x3.0-4.0 | 20x2.5-3.0 | 230 |
20x4.1-4.8 | 20x3.5-4.0 | 230 |
TIRE/ARMOUR SIZE | TUBE SIZES | GRAMS |
24x1.95-2.5 | 24x1.5-1.95 | 270 |
24x3.0-4.0 | 24x2.5-3.0 | 480 |
26x1.6-1.9 | 26x1.1-1.5 | 260 |
26x1.95-2.5 | 26x1.5-1.95 | 300 |
TIRE/ARMOUR SIZE | TUBE SIZES | GRAMS |
26x4.0-4.8 | 26x3.0-4.0 | 550 |
27.5x1.95-2.5 | 27.5x1.5-1.95 | 310 |
27.5x2.6-3.0 | 27.5x1.9-2.3 | 330 |
29x1.95-2.5 | 29x1.5-1.95 | 320 |
TIRE/ARMOUR SIZE | TUBE SIZES | GRAMS |
29+x2.6-3.0 | 29x1.9-2.3 | 350 |
700x28-34c | 700x18-23c | 200 |
700x35-40c | 700x23-28c | 230 |
700x42-47c | 700x28-32c | 290 |
FAQs
WHAT SIZE DO I NEED?
Our Armour sizes are based on your tire size. If your tire size is 26x2.1 then you would select Tannus Armour 26x2.0-2.5.
If you need tubes you will want to use our size chart to see what tube size you need. You will need a smaller tube size than what your tire requires.
What PSI should I run?
Tire pressure is a personal preference depending on size of the rider and riding conditions. However, adding Tannus Armour does allow you to run lower pressure which gives better control, and comfort.
We recommend starting 5psi lower than what you normally ride and adjusting your psi up or down from there based on the ride feel you enjoy.
Fat-tired e-bikes shouldn't run too low (under 10psi) as this may not offer enough support or give the comfort you're accustomed to.
E-BIKES can run at normal tire PSI.
How much does Tannus Armour weigh?
Tannus Armour weighs between 190-500 grams depending on the size. It provides 13-15mm of protection at it's thickest point and 2-5mm of sidewall protection.
Can I ride flat on Tannus Armour?
One of the great features of the Tannus Armour is that if you get a flat during the ride you can ride a few miles without hurting your rim.* However, if you do get a flat please avoid rougher terrain.
*Does not apply to the following sizes: 20x3.0-4.0, 20x4.1-4.8, and 26x4.0-4.8.
HOW DO I INSTALL TANNUS ARMOUR?
Here is all the information you need to install Tannus Armour. VIEW INSTALLATION INFO