---
product_id: 328531139
title: "Tannus Armour Tire Insert, Fat Tire Tube, No Flat Bike Tire Liner, Puncture Proof Tube Protector for E-Bikes and MTB"
brand: "tannus"
price: "5196876₫"
currency: VND
in_stock: true
reviews_count: 13
category: "Tannus"
url: https://www.desertcart.vn/products/328531139-tannus-armour-tire-insert-fat-tire-tube-no-flat-bike
store_origin: VN
region: Vietnam
---

# Improves ride comfort & handling Quick 10-15 min installation Patented foam insert for puncture-proof protection Tannus Armour Tire Insert, Fat Tire Tube, No Flat Bike Tire Liner, Puncture Proof Tube Protector for E-Bikes and MTB

**Brand:** tannus
**Price:** 5196876₫
**Availability:** ✅ In Stock

## Summary

> 🛞 Ride fearless, ride flawless with Tannus Armour!

## Quick Answers

- **What is this?** Tannus Armour Tire Insert, Fat Tire Tube, No Flat Bike Tire Liner, Puncture Proof Tube Protector for E-Bikes and MTB by tannus
- **How much does it cost?** 5196876₫ with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/328531139-tannus-armour-tire-insert-fat-tire-tube-no-flat-bike)

## Best For

- tannus enthusiasts

## Why This Product

- Trusted tannus brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Effortless Setup:** Install in just 10-15 minutes with clear embossed instructions.
- • **Save Time & Money:** Stop buying & patching tubes—invest once, ride worry-free.
- • **Ride Flat, Fear Less:** Convert your tires to run flat and never get stranded mid-ride.
- • **Comfort Meets Durability:** Foam insert enhances ride comfort unlike solid rubber alternatives.
- • **Pro-Level Puncture Defense:** Trusted by MTB pros to stop pinch flats, thorns, and goatheads.

## Overview

The Tannus Armour Tire Insert is a patented foam liner designed to protect gravel, fat, and e-bike tires from punctures caused by thorns, goatheads, and road debris. Trusted by professional mountain bike teams, it converts tires to run flat, improving ride comfort and handling without the bulk of solid rubber replacements. Easy to install in 10-15 minutes, this puncture-proof insert saves riders from frequent flats and costly tube replacements.

## Description

Product description The effective all-round protection for bicycle tires against punctures, cuts and bruises! Up to 15 mm thick at the thickest point, 3-5 mm on the sides and 2 mm in the rim area. Compatible with the majority of bike tires. Very light, reusable and recyclable. Even at low air pressure, the Armour counteracts deformation and maintains a high level of grip. Ride with a flat: Even with a flat or defective tube you can continue riding at a reduced speed of 5 MPH. Aither Protection Technology The puncture protection is developed with our patented Aither technology. A multi-cell foam mix that is light, flexible, yet incredibly durable. This is the culmination of 10 years of Tannus development in the tire industry. The Advantages of Tannus ARMOUR Puncture protection Nearly 360° protection against glass, thorns and sharp objects. Increased Grip Even with too little tire pressure, provides good traction and grip in wet and loose surfaces Pinch flat Cushioning on impact so that the tube is not pinched against the rim. Run Flat Designed to support continued riding on a flat for a limited distance at up to 5 mph. Increased Comfort Quiet and comfortable riding experience thanks to vibration absorption. Simple Installation With the proper tools, it's a simple and maintenance-free installation.

Review: Great Quality Tire Protection (2nd review) - I am changing this back to a Great 5 star review because this is a great quality product and Tannus shouldn't be criticized because they didn't do anything wrong, as it was an desertcart issue. Also these 26x4 are not easy to install but after having these professionally installed at a Specialized bike shop by a Specialized bike mechanic which costed an additional $195 on my electric bike the bike rides nicer and smoother then ever and so far NO FLAT TIRES... Thanks again for the High quality bike parts Tannus...
Review: Must have for e-bikes - This insert has performed very well in the month I’ve had it. In the 6 months I’ve had my bike I’ve had at least 7 flats and most were from little pieces of metal from the street cleaners bristles and small glass shards. All would barely break through the tire but with the weight on the back tire they’d cause a flat. Always the back; insert angry face!! The second day it was in I pulled a staple that went straight into the tire out and the day after that a 3/4” finishing nail that went in at a slight angle. Neither punctured the tube and what I would’ve spent on replacement tubes has already covered a decent portion of the cost of this. I can still find glass shards and fine metal pieces but I’ve stopped even looking after seeing it take the nail and not go flat. I’ve seen reviews about this not having instructions and that’s wrong. They’re literally embossed on the side of the insert. It’s a few simple steps; deflate tube, clean insert, put insert into tire, tire on bike, re-inflate. But honestly if you need more that that you probably shouldn’t be working on your own bike imho. The only thing that wasn’t stated was that you may have to trim this if your size falls within a range like mine 3-4” insert for a 3” tire, but that’s kinda common sense and if you held the insert against your tire without trimming you’d see it’s way over sized. For this I put the whole insert into the tire, traced where it touched the edge of the tire and then cut 1/8” inside that line to give the tire bead space to seat in the rim. Like magic the amount I cut off was very close to 1” Lastly I’d like to point out something about sizing. The 20x3” tube I first put on which is my bikes size was too big. I felt this as I put it on. There’s just too much rubber when this insert takes up 1/3 of the space in the tire. I did my best to stretch it out and have it fit smoothly in the tire but there seemed to always be a spot it bunched. Plus I couldn’t really pump more than 20psi into the tire despite the bike calling for a min of 24. I should’ve trusted my instincts but recall reading another review saying someone was a clown for saying you need to size the tube down. Well last week I got a flat, was still able to ride to a safe place to change as the insert doesn’t put your rim on the road and the flat was caused by a small pinch in the tube. Not even against the rim just a tiny fold in the center of the tube where it sat in the insert. I got the next partial size tube smaller; 2.75-3.3” and it fits much better and took the correct psi.

## Features

- NO FLATS, MAXIMUM PROTECTION: Tannus Armour tire insert works as a puncture-proof tire liner and bike tube protector, helping stop flats from thorns, goatheads, rocks, and debris while improving comfort on fat tire, gravel, and e-bike rides
- PATENTED AITHER FOAM TECHNOLOGY: Made from lightweight, high-tech multi-cell foam, this insert provides 15mm of top protection and sidewall support, delivering vibration dampening, better grip, and a smoother, quieter ride
- RUN-FLAT CAPABILITY & PINCH-FLAT DEFENSE: Ride with confidence knowing your tires gain run-flat support in case of a puncture and added protection against pinch flats, helping you finish your ride even with low or no air
- BETTER HANDLING THAN SOLID LINERS: Unlike solid rubber tire liners, Tannus Armour tire insert improves ride feel, control, and stability, supporting your bike tire and tube across different pressures while maintaining comfort, grip, and low rolling resistance for mountain, gravel, fat tire, and e-bike riding
- FAST, TOOL-FREE INSTALL: This Tannus Armour tire insert installs easily between your bike tire and inner tube in about 10–15 minutes per wheel, with no special tools required—simple to remove and reuse when changing mountain, gravel, fat tire, or e-bike tires and tubes

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08P3TTLHR |
| Best Sellers Rank | #44,775 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #186 in Bike Tires |
| Bike Type | Mountain Bike |
| Brand | Tannus |
| Brand Name | Tannus |
| Color | Red |
| Customer Reviews | 4.2 out of 5 stars 726 Reviews |
| Included Components | Instructions |
| Item Diameter | 26 Inches |
| Item Width | 4 Inches |
| Manufacturer | Tannus |
| Manufacturer Part Number | TA Insert |
| Material Type | Foam |
| Model Number | TA Insert |
| Size | 26" x 4.0-4.8" |
| Tire Type | Clincher |
| Tread Type | Multi-terrain or All-terrain |
| Unit Count | 1 Count |
| Warranty Type | Limited |
| Wheel Size | 26 Inches |

## Product Details

- **Bike Type:** Mountain Bike, Road Bike
- **Brand:** Tannus
- **Item Diameter:** 26 Inches
- **Item Width:** 4.8 Inches
- **Manufacturer:** Tannus
- **Material:** Foam
- **Size:** 26" x 4.0-4.8"
- **Tire Type:** Tubeless
- **Warranty Type:** Limited

## Images

![Tannus Armour Tire Insert, Fat Tire Tube, No Flat Bike Tire Liner, Puncture Proof Tube Protector for E-Bikes and MTB - Image 1](https://m.media-amazon.com/images/I/513JWzklj0L.jpg)
![Tannus Armour Tire Insert, Fat Tire Tube, No Flat Bike Tire Liner, Puncture Proof Tube Protector for E-Bikes and MTB - Image 2](https://m.media-amazon.com/images/I/91eQFVvz5wL.jpg)
![Tannus Armour Tire Insert, Fat Tire Tube, No Flat Bike Tire Liner, Puncture Proof Tube Protector for E-Bikes and MTB - Image 3](https://m.media-amazon.com/images/I/71H93jpH8OL.jpg)
![Tannus Armour Tire Insert, Fat Tire Tube, No Flat Bike Tire Liner, Puncture Proof Tube Protector for E-Bikes and MTB - Image 4](https://m.media-amazon.com/images/I/61XO1W+VClL.jpg)
![Tannus Armour Tire Insert, Fat Tire Tube, No Flat Bike Tire Liner, Puncture Proof Tube Protector for E-Bikes and MTB - Image 5](https://m.media-amazon.com/images/I/61zXD6KdIKL.jpg)

## Available Options

This product comes in different **Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great Quality Tire Protection (2nd review)
*by S***N on April 11, 2026*

I am changing this back to a Great 5 star review because this is a great quality product and Tannus shouldn't be criticized because they didn't do anything wrong, as it was an Amazon issue. Also these 26x4 are not easy to install but after having these professionally installed at a Specialized bike shop by a Specialized bike mechanic which costed an additional $195 on my electric bike the bike rides nicer and smoother then ever and so far NO FLAT TIRES... Thanks again for the High quality bike parts Tannus...

### ⭐⭐⭐⭐⭐ Must have for e-bikes
*by M***L on April 18, 2024*

This insert has performed very well in the month I’ve had it. In the 6 months I’ve had my bike I’ve had at least 7 flats and most were from little pieces of metal from the street cleaners bristles and small glass shards. All would barely break through the tire but with the weight on the back tire they’d cause a flat. Always the back; insert angry face!! The second day it was in I pulled a staple that went straight into the tire out and the day after that a 3/4” finishing nail that went in at a slight angle. Neither punctured the tube and what I would’ve spent on replacement tubes has already covered a decent portion of the cost of this. I can still find glass shards and fine metal pieces but I’ve stopped even looking after seeing it take the nail and not go flat. I’ve seen reviews about this not having instructions and that’s wrong. They’re literally embossed on the side of the insert. It’s a few simple steps; deflate tube, clean insert, put insert into tire, tire on bike, re-inflate. But honestly if you need more that that you probably shouldn’t be working on your own bike imho. The only thing that wasn’t stated was that you may have to trim this if your size falls within a range like mine 3-4” insert for a 3” tire, but that’s kinda common sense and if you held the insert against your tire without trimming you’d see it’s way over sized. For this I put the whole insert into the tire, traced where it touched the edge of the tire and then cut 1/8” inside that line to give the tire bead space to seat in the rim. Like magic the amount I cut off was very close to 1” Lastly I’d like to point out something about sizing. The 20x3” tube I first put on which is my bikes size was too big. I felt this as I put it on. There’s just too much rubber when this insert takes up 1/3 of the space in the tire. I did my best to stretch it out and have it fit smoothly in the tire but there seemed to always be a spot it bunched. Plus I couldn’t really pump more than 20psi into the tire despite the bike calling for a min of 24. I should’ve trusted my instincts but recall reading another review saying someone was a clown for saying you need to size the tube down. Well last week I got a flat, was still able to ride to a safe place to change as the insert doesn’t put your rim on the road and the flat was caused by a small pinch in the tube. Not even against the rim just a tiny fold in the center of the tube where it sat in the insert. I got the next partial size tube smaller; 2.75-3.3” and it fits much better and took the correct psi.

### ⭐⭐⭐⭐⭐ Great inserts
*by C***O on April 4, 2026*

This is my second time buying these tire inserts. They work wonders with my husband's ebike. He really likes them. They do prevent the tires from catching flats, so this is a worthwhile investment.

## Frequently Bought Together

- Tannus Armour Tire Insert, No Flat Bike Tire Liner, Puncture Proof Bicycle Tube Protector, Stops Flats from Thorns and Goatheads Compatible with E-Bikes, Mountain Bikes, and More
- Ultraverse 20x4.0, 26x4.0, 20x3.0, 26x3.0 Inner Tube Set with Schrader Valve-Ideal for Mountain Bikes & E-Bikes with 20/26-Inch Fat Tires-Durable & Reliable Performance 2 Pack with Tire Levers

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---

*Product available on Desertcart Vietnam*
*Store origin: VN*
*Last updated: 2026-06-03*