---
product_id: 499709554
title: "2Pcs Self-Sealing 20 inch Fat Bike Inner Tubes AV32mm Schrader Valve Automatic Repair Puncture Resistant Tube Compatible Fat Bicycle Tyre Inner Tube"
brand: "yunscm"
price: "€ 66.93"
currency: EUR
in_stock: true
reviews_count: 8
url: https://www.desertcart.ie/products/499709554-2pcs-self-sealing-20-inch-fat-bike-inner-tubes-av32mm
store_origin: IE
region: Ireland
---

# 20x4.0-4.5" fat bike fit Cold weather ready (-15°C) Self-sealing puncture defense 2Pcs Self-Sealing 20 inch Fat Bike Inner Tubes AV32mm Schrader Valve Automatic Repair Puncture Resistant Tube Compatible Fat Bicycle Tyre Inner Tube

**Brand:** yunscm
**Price:** € 66.93
**Availability:** ✅ In Stock

## Summary

> 🛠️ Seal the Deal: Never Let a Flat Slow Your Hustle!

## Quick Answers

- **What is this?** 2Pcs Self-Sealing 20 inch Fat Bike Inner Tubes AV32mm Schrader Valve Automatic Repair Puncture Resistant Tube Compatible Fat Bicycle Tyre Inner Tube by yunscm
- **How much does it cost?** € 66.93 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/499709554-2pcs-self-sealing-20-inch-fat-bike-inner-tubes-av32mm)

## Best For

- yunscm enthusiasts

## Why This Product

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

## Key Features

- • **Cold-Weather Performance:** Designed to self-seal effectively even in temperatures as low as -15°C, so your ride never stops with the seasons.
- • **Instant Puncture Protection:** Pre-installed sealant automatically repairs small holes within seconds, keeping you rolling without roadside delays.
- • **Durability Meets Convenience:** Thicker butyl rubber construction offers enhanced toughness while remaining easy to install and maintain.
- • **Hassle-Free Replacement & Support:** Quick installation plus a 180-day quality guarantee backed by responsive customer service for total peace of mind.
- • **Ride Fearlessly with Fat Tire Fit:** Perfectly engineered for 20x4.0-4.5" fat bike tires, ensuring a snug, reliable fit for your mountain or road adventures.

## Overview

YunSCM’s 2-pack of 20" fat bike inner tubes (20x4.0-4.5") features self-sealing technology with pre-installed puncture-resistant sealant, durable butyl rubber construction, and compatibility with mountain and road fat tires. Engineered for quick automatic repair of small punctures within 5-8 seconds, these tubes perform reliably even in cold weather down to -15°C. Easy to install and backed by a 180-day quality guarantee, they’re the ultimate upgrade for proactive cyclists who demand durability and convenience.

## Description

YunSCM 2Pcs Self-Sealing 20 inch Fat Bike Inner Tubes AV32mm Schrader Valve Automatic Repair Puncture Resistant Tube Compatible Fat Bicycle Tyre Inner Tube

## Features

- ‍🗽【Size】Fat bike inner tubes 20x40/4.5, 32mm (Regular valve), compatible with road bike/mountain bike tire ( ETRTO : 100-406/114-406 ) bicycle tire tubes
- ‍🗽【Easy to USE 】The self sealing bike tyre tube is a self-repair for some small holes or very fine cracks. For example, after a long time, some places will leak air quietly, accidentally hit nails and other problems, which are easy to repair. It is worth noting that our self-repairing inner tube can be used normally at room temperature and 0~-15℃, and it is more conducive to travel in cold weather.
- ‍🗽【Please Note】As the liquid is fluid, please avoid concentrating the center of gravity or the liquid near the air nozzle during operation to prevent spillage while inflating.
- 🗽【Safe Bike Tyres】Pre-installed with sealant to provide maximum puncture protection and prevent flat tires on your bike.The self-repairing inner tube is a thicker design, which is more durable than the normal inner tower. The bicycle inner tube rolls through the tire repair liquid to automatically fill the punctured area. After testing, the leak can be repaired within 5-8 seconds under normal conditions.
- 🗽【Easy to Install】Installing the bicycle tubes is quick and easy. Please follow the inflation guide when inflating a tire from completely flat. Replacing your old tire tubes is hassle-free and can be done within minutes, saving time and ensuring efficiency.
- 🗽【After-sales Service】If there is any problem about the product, you can contact us, we will try our best to solve for you!
- 🗽【100% Product Quality Guarantee】We hope to do better in the tire, hope to listen to friends' opinions and suggestions, in order to provide better service and more satisfactory products.If there is any problem on the product within 180 days, you can get in touch with us, and you need to provide evidence pictures and relevant situation descriptions, so that we can respond quickly and save your precious time. We will try our best to satisfy you. Thank you for your trust!

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Bike type | Compatible with This Size Range of Bicycle Tires |
| Size | 20x4.0-4.5" |
| Material type | Butyl Rubber |
| Wheel size | 20 Inches |
| Batteries included? | No |
| Brand | YunSCM |
| Manufacturer | YunSCM |
| Item model number | 20x4.0/4.5 |
| Package Dimensions | 28.2 x 24 x 5.1 cm; 1.32 kg |
| ASIN | B08MQ4P879 |

## Product Details

- **Brand:** YunSCM
- **Valve type:** Schrader
- **Material:** Butyl Rubber
- **Wheel size:** 20 Inches
- **Item diameter:** 20 Inches

## Images

![2Pcs Self-Sealing 20 inch Fat Bike Inner Tubes AV32mm Schrader Valve Automatic Repair Puncture Resistant Tube Compatible Fat Bicycle Tyre Inner Tube - Image 1](https://m.media-amazon.com/images/I/61nk2qx60cL.jpg)

## Questions & Answers

**Q: Does anyone have any experience with a puncture with these tires? Did they work?**
A: Yeah, I bought these in January and both of them were brought down by holes smaller than a pin hole. Don't waste your time on these.

**Q: What's the Psi for the inner tube**
A: PSI is on the tire not the tube.  Probably 20 to 30.

**Q: In case of a large puncture can these tubes be patched in the normal way?**
A: I don't know, but I would think you could patch them. The tubes look and feel like a normal tube.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Just as expected
*by A***  on 24 April 2025*

I love it

### ⭐⭐⭐⭐⭐ Value for money
*by A***Y on 6 November 2024*

Well made heavy duty inner tubes, close inspection of seams and valve attachment show strong joints .I use them on 16x4 fat tyre e-trike and so far the pre installed anti puncture material has not been tested, but no noticeable balance issues with it.

### ⭐⭐⭐⭐⭐ Do the job as described
*by M***O on 22 December 2023*

I can now say officially after my first puncture they work as described. Was out on a ride, could hear tyre going down so pulled out my battery powered portable air inflator (another handy tool) and re inflated to desired psi. Off I cycled, had another 10 miles to get home and the tyre stayed up all the way so it does work thank the Lord. Obviously once not riding the tyre went down again as it needed repairing but it got me home and that's a blessing. I'd recommend highly. 👌 this was for a 20x4.0 fat tyre bike.

## Frequently Bought Together

- 2-PCS 20x4 Heavy Duty Fat E-Bike Tubes 20 x 4.0/4.5 AV32mm Super Automatic Repair, Self-Sealing, Puncture Resistant Compatible with 20x4 20x4 1/4 20x4.25 20x4.50Bike Bicycle Tire Tubes Schrader Valve
- Fat Bike Tire Liner, Bicycle Tube Flat Protector Compatible with 20"/24"/26"/27.5/29"
- HEB VIPERESS 20x4.0 Fat Tire - Puncture Resistant Ebike Tires, 20x4 Fat Bike Tire for Electric Bike, MTB, Heavy Duty, All Terrain Tire for Street/Trail Riding (Qty 2 - Silver Logo, 20 x 4 Fat Tire)

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.ie/products/499709554-2pcs-self-sealing-20-inch-fat-bike-inner-tubes-av32mm](https://www.desertcart.ie/products/499709554-2pcs-self-sealing-20-inch-fat-bike-inner-tubes-av32mm)

---

*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-03-02*