---
product_id: 344911619
title: "YUNSCM 2-PCS Heavy Duty 20x3.0 E-Bike Tubes 20\" Fat Bike Tubes Scharder Valve 20 X 3 Inner Tubes Compatible with E-Bike 20 X 3.0/3.5 (76/89-406) Bicycle Fat Tire Tubes"
brand: "yunscm"
price: "R$423"
currency: BRL
in_stock: true
reviews_count: 8
url: https://www.desertcart.com.br/products/344911619-yunscm-2-pcs-heavy-duty-20x3-0-e-bike-tubes
store_origin: BR
region: Brazil
---

# 6-9 months air retention 20" x 3.0/3.5" fit 40% thicker butyl rubber YUNSCM 2-PCS Heavy Duty 20x3.0 E-Bike Tubes 20" Fat Bike Tubes Scharder Valve 20 X 3 Inner Tubes Compatible with E-Bike 20 X 3.0/3.5 (76/89-406) Bicycle Fat Tire Tubes

**Brand:** yunscm
**Price:** R$423
**Availability:** ✅ In Stock

## Summary

> 🛞 Upgrade your fat bike’s heart with unstoppable durability!

## Quick Answers

- **What is this?** YUNSCM 2-PCS Heavy Duty 20x3.0 E-Bike Tubes 20" Fat Bike Tubes Scharder Valve 20 X 3 Inner Tubes Compatible with E-Bike 20 X 3.0/3.5 (76/89-406) Bicycle Fat Tire Tubes by yunscm
- **How much does it cost?** R$423 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.br](https://www.desertcart.com.br/products/344911619-yunscm-2-pcs-heavy-duty-20x3-0-e-bike-tubes)

## 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

- • **Built to Endure:** Heavy-duty butyl rubber boosts puncture resistance and durability for longer rides without worry.
- • **Double the Value:** Two premium inner tubes included—ready to keep you rolling and avoid downtime on your next adventure.
- • **Stay Fully Inflated:** Enhanced air tightness keeps your tires pressurized up to 9 months, slashing maintenance time.
- • **Smooth Ride Guaranteed:** Superior shock absorption smooths out bumps, elevating your fat bike comfort on any terrain.
- • **Universal Fat Tire Fit:** Compatible with 20x3.0 to 20x3.5 fat tires and Schrader valves for easy, hassle-free installation.

## Overview

The YUNSCM 20" x 3.0/3.5" heavy-duty inner tubes feature 40% thicker butyl rubber and EPDM for 200% improved air tightness, maintaining optimal tire pressure for 6-9 months. Designed for fat tire e-bikes and mountain bikes, these tubes offer superior puncture resistance and shock absorption, ensuring a smoother, safer ride. Each pack includes two Schrader valve tubes compatible with a wide range of fat tires, making them a reliable upgrade for serious riders seeking durability and performance.

## Description

Full description not available

## Features

- Heavy Duty inner tube：20"x3.0"/3.5" AV32 mm (76/89-406)) Heavy duty bicycle replacement inner tube, Compatible with 20 X 3.0 20 X 3.25 20 X 3.30 20 X 3.50 fat tire tubes
- HEAVY DUTY - Air Tightness: Using high elasticity and high quality butyl rubber and EPDM rubber, the thickness is increased by 40%, and the air tightness of the inner tube is increased by 200% than that of the ordinary butyl inner tube; After inflation, the tire can maintain a higher air pressure for 6-9 months, greatly reducing the inflation frequency. Good air tightness helps keep tire pressure stable, thus improving driving safety.
- HEAVY DUTY- Ultra Durable: Our heavy duty inner tubes have higher puncture resistance than ordinary inner tubes, and the thicker body can withstand more friction and wear, thus extending the service life of the tube, reducing replacement frequency and maintenance costs. And in long-term use.
- Excellent shock absorption ability ：The heavy, strong, highly durable butyl rubber made from these inner tubes is a perfect shock absorber to reduce vibration and eliminate the shock caused by bumps and rough surfaces on the road or pavement. Heavy Duty butyl rubber for maximum ride comfort - upgrade your ride experience
- Installation: 20"x3.0"/3.5" bicycle heavy duty replacement inner tube for easy installation and removal. Check the valve position to ensure that the installation direction is correct.
- Package Includes: 2 pcs 20 X 3.0/3.50 AV32mm Schrader Valve heavy duty bike tubes.
- This heavy duty inner tube is compatible with the corresponding models of mountain bikes, road bikes, Cruiser bikes, electric bikes; At the same time, the increase in thickness can meet the needs of the longer driving range and load of the prevailing electric bicycles.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | YunSCM |
| Valve Type | Schrader |
| Material | Butyl Rubber |
| Wheel Size | 20 Inches |
| Item Diameter | 20 Inches |
| Item Width | 3 Inches |
| UPC | 781509355432 |
| Compatible Tire Width Minimum | 76 Millimeters |
| Valve Length | 0.94 Inches |
| Manufacturer | YunSCM517136 |
| Size | 20" |
| Compatible Tire Width Maximum | 89 Millimeters |
| Item Package Dimensions L x W x H | 8.54 x 7.76 x 2.8 inches |
| Package Weight | 0.8 Kilograms |
| Brand Name | YunSCM |
| Model Name | 20X3.0/3.5 |
| Suggested Users | unisex-adult |
| Part Number | YunSCM517136 |
| Model Year | 2022 |

## Product Details

- **Brand:** YunSCM
- **Valve Type:** Schrader
- **Material:** Butyl Rubber
- **Wheel Size:** 20 Inches
- **Item Diameter:** 20 Inches

## Images

![YUNSCM 2-PCS Heavy Duty 20x3.0 E-Bike Tubes 20" Fat Bike Tubes Scharder Valve 20 X 3 Inner Tubes Compatible with E-Bike 20 X 3.0/3.5 (76/89-406) Bicycle Fat Tire Tubes - Image 1](https://m.media-amazon.com/images/I/81s2Cvy3ODL.jpg)
![YUNSCM 2-PCS Heavy Duty 20x3.0 E-Bike Tubes 20" Fat Bike Tubes Scharder Valve 20 X 3 Inner Tubes Compatible with E-Bike 20 X 3.0/3.5 (76/89-406) Bicycle Fat Tire Tubes - Image 2](https://m.media-amazon.com/images/I/51CNFOJa62L.jpg)
![YUNSCM 2-PCS Heavy Duty 20x3.0 E-Bike Tubes 20" Fat Bike Tubes Scharder Valve 20 X 3 Inner Tubes Compatible with E-Bike 20 X 3.0/3.5 (76/89-406) Bicycle Fat Tire Tubes - Image 3](https://m.media-amazon.com/images/I/61aYXrciDgL.jpg)
![YUNSCM 2-PCS Heavy Duty 20x3.0 E-Bike Tubes 20" Fat Bike Tubes Scharder Valve 20 X 3 Inner Tubes Compatible with E-Bike 20 X 3.0/3.5 (76/89-406) Bicycle Fat Tire Tubes - Image 4](https://m.media-amazon.com/images/I/71FImQeSDIL.jpg)
![YUNSCM 2-PCS Heavy Duty 20x3.0 E-Bike Tubes 20" Fat Bike Tubes Scharder Valve 20 X 3 Inner Tubes Compatible with E-Bike 20 X 3.0/3.5 (76/89-406) Bicycle Fat Tire Tubes - Image 5](https://m.media-amazon.com/images/I/61p+Ty1Y5WL.jpg)

## Questions & Answers

**Q: Can you remove the valve core on these to add sealant?**
A: not sure why you would do that but yes.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great quality inner tube.
*by H***7 on May 27, 2025*

Arrived fast and fits the tire perfectly. Quality and build are great as well.

### ⭐⭐⭐⭐⭐ Lectric XP-4 Replacement Tube
*by N***K on July 27, 2025*

Had the XP-4 for 4 days and the OE inner tube developed a hole next to the valve stem. Very disappointing. Is this the best we can expect from China?Hopefully, this other Chinese brand will last longer. Giving it 5 stars now, but will edit later if there are any issues.Yeah, they're going to take over the world one day... NOT. Can't even make a bike inner tube.

### ⭐⭐⭐⭐⭐ 👍🏻
*by G***S on June 22, 2025*

Why did you pick this product vs others?:Bought these hoping they would fit my first gen RAD bike and they did! Work great and i would order again.

## Frequently Bought Together

- YunSCM 2-Pcs 20 inch Bike Inner Tubes 20x3.0/3.5 AV32mm Schrader Valve Compatible 20x3.1 20x3.2 20x3.30 20x3.4 20x3.5 Electric Bike/Bicycle Tire Tubes
- Fat Bike Tires, 20 x 3.0 Fat Tyres, Puncture Proof Widening Beach Bicycle Fat Tyre, Non-slip Folding Electric Bicycle Tires, Fat Bike Tires Replacement Set for Wide Mountain Snow B
- Slime 10015 Bike Tube Puncture Repair Sealant, Prevent and Repair, Suitable for all Bicycles, Non-Toxic, Eco-Friendly, 237 mL (8oz) bottle, Green

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*Product available on Desertcart Brazil*
*Store origin: BR*
*Last updated: 2026-01-29*