---
product_id: 595238631
title: "Fat Bike Tire Liner, Bicycle Tube Flat Protector Compatible with 20\"/24\"/26\"/27.5/29\""
brand: "julai"
price: "¥11315"
currency: JPY
in_stock: true
reviews_count: 8
url: https://www.desertcart.jp/products/595238631-fat-bike-tire-liner-bicycle-tube-flat-protector-compatible-20
store_origin: JP
region: Japan
---

# Lightweight at 208g per pair 1mm thick polyurethane shield Fits 20"-29" fat bike tires Fat Bike Tire Liner, Bicycle Tube Flat Protector Compatible with 20"/24"/26"/27.5/29"

**Brand:** julai
**Price:** ¥11315
**Availability:** ✅ In Stock

## Summary

> 🛡️ Ride Fearlessly, Protect Relentlessly!

## Quick Answers

- **What is this?** Fat Bike Tire Liner, Bicycle Tube Flat Protector Compatible with 20"/24"/26"/27.5/29" by julai
- **How much does it cost?** ¥11315 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/595238631-fat-bike-tire-liner-bicycle-tube-flat-protector-compatible-20)

## Best For

- julai enthusiasts

## Why This Product

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

## Key Features

- • **Lightweight Yet Tough:** At just 208 grams per pair, it adds protection without weighing you down on every trail.
- • **Peace of Mind Warranty:** Backed by a 1-year warranty, so you can ride fearless and focus on the adventure.
- • **Effortless Installation:** Simply measure, trim, and install—no mechanic needed to protect your ride instantly.
- • **Durable Polyurethane Armor:** Crafted from high-quality, wear-resistant material to stop thorns, glass, and nails cold.
- • **Universal Fit for Fat Bikes:** Compatible with tires from 20" to 29" and widths 4"-5" for ultimate versatility.

## Overview

The JULAI Fat Bike Tire Liner is a lightweight, 1mm thick polyurethane protector designed to fit fat bike tires from 20" to 29" with widths between 4" and 5". Sold in pairs, it guards against punctures from thorns, glass, and nails, offering easy installation and a 1-year warranty for reliable trail protection.

## Description

Fat Bike Tire Liner, Bicycle Tube Flat Protector Compatible with 20"/24"/26"/27.5/29"

## Features

- One size Fits for fat bike tire Compatible with up to 29" X 4"-5", Comes in a pairs, for two tires.
- LxW: 2300x110mm(4.33"), Thickness: 1mm
- Made by high quality Polyurethane, light weight and wear resistant.
- Easy to install, just measure and trim it, you can stop the thorns, glass, thorns, nails and other trail debris from penetrating through and puncturing the tube.
- Warranty: One year

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | JULAI |
| Valve Type | Schrader |
| Material | ‎Polyurethane |
| Bike Type | Fat Bike |
| Wheel Size | 29 Inches |
| Item Diameter | 29 Inches |
| Item Width | 1.1E+2 Millimeters |
| UPC | 740283686910 |
| Compatible Tire Width Minimum | 4 Inches |
| Item Weight | 208 Grams |
| Manufacturer | Ju Lai Technology |
| Size | 29x4-5" |
| Compatible Tire Width Maximum | 5 Inches |
| Item Package Dimensions L x W x H | 5.63 x 4.88 x 2.72 inches |
| Package Weight | 0.73 Kilograms |
| Item Dimensions  LxWxH | 90.6 x 4.33 x 0.04 inches |
| Brand Name | JULAI |
| Warranty Description | 1 year |
| Model Name | JLBK2008 |
| Color | Black+Green（2pcs) |
| Suggested Users | Unisex-Youth, Unisex-Adult |
| Number of Items | 2 |
| Part Number | JLBK200807 |
| Included Components | No |
| Sport Type | Cycling |

## Product Details

- **Brand:** JULAI
- **Valve Type:** Schrader
- **Material:** ‎Polyurethane
- **Bike Type:** Fat Bike
- **Wheel Size:** 29 Inches

## Images

![Fat Bike Tire Liner, Bicycle Tube Flat Protector Compatible with 20"/24"/26"/27.5/29" - Image 1](https://m.media-amazon.com/images/I/61dm0GAZoFL.jpg)
![Fat Bike Tire Liner, Bicycle Tube Flat Protector Compatible with 20"/24"/26"/27.5/29" - Image 2](https://m.media-amazon.com/images/I/61pGBbfmQxL.jpg)
![Fat Bike Tire Liner, Bicycle Tube Flat Protector Compatible with 20"/24"/26"/27.5/29" - Image 3](https://m.media-amazon.com/images/I/61tFiVByMAL.jpg)
![Fat Bike Tire Liner, Bicycle Tube Flat Protector Compatible with 20"/24"/26"/27.5/29" - Image 4](https://m.media-amazon.com/images/I/61NKrZ0o9LL.jpg)
![Fat Bike Tire Liner, Bicycle Tube Flat Protector Compatible with 20"/24"/26"/27.5/29" - Image 5](https://m.media-amazon.com/images/I/81TSD6C7dVL.jpg)

## Available Options

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

## Questions & Answers

**Q: How many count per package?**
A: 2 rolls.

**Q: How to choose size?**
A: Each roll of tire liner is 7 FT, Fit up to 29 inch. We have different width liners, please choose the liner which is close width showed on your tire.

**Q: Does the type of valve affect liner usage?**
A: No, different valve types do not have affect product use, there are nothing valve restrictions.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Very Tough.
*by A***N on March 31, 2024*

This thing is tough. I cut a swatch out and tried to press a nail through. I had a very hard time even twisting it. the installation is a bit tricky. deflate the tire but not all the way. it should have a quarter inch between the tire and tube. Warm the lining up slightly. this will help with sliding it in. You can even use some baby powder inside the wheel if you are having a hard time sliding it in. It will want to twist on you. just keep feeding it slightly about 1/4 of the way around the tire. go back and tuck the first section inside. keep preparing until you have it all the way slid into the tire.

### ⭐⭐⭐⭐⭐ Great product!!
*by R***. on September 24, 2024*

Very good product it works very well, but it is definitely not a one-man job. I had to buy some glue to glue it to the inside of the tire then I put another protector that is called. Tannus Armour Tire Insert Then I put the tire back on the rim then I put the tube in install the rest of the way pumped it up and have not had a flat tire since hopefully this is helped somebody

### ⭐ Don’t buy! Cheap material, doesn’t work.
*by N***N on November 23, 2023*

I have brand name tire liners in another bike. They work great and have lasted a long time, sometimes years. These are cheap crap. They are too thin to stop even thorns from going through and puncturing tubes. They are very difficult to place in the tire and they move excessively after being installed. I would suggest considering these a great way to throw away your money. I would strongly suggest NOT buying these.

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-01-29*