---
product_id: 395784961
title: "YunSCM 2-PCS 12/12.5\" Heavy Duty Bike Tubes 12/12.5x1.75/2.25(12 1/2 X 2 1/4) ETRTO 45/57-203 AV32 Schrader Valve Compatible with 12x1.75-2.25 12.5x1.75-2.25 12 ½ x 2 ¼ Road/MTB Bike Tyre Tubes"
brand: "yunscm"
price: "€ 46.87"
currency: EUR
in_stock: true
url: https://www.desertcart.fi/products/395784961-yunscm-2-pcs-12-12-5-heavy-duty-bike-tubes
store_origin: FI
region: Finland
---

# 40% thicker butyl rubber 12/12.5" size fit 200% better air retention YunSCM 2-PCS 12/12.5" Heavy Duty Bike Tubes 12/12.5x1.75/2.25(12 1/2 X 2 1/4) ETRTO 45/57-203 AV32 Schrader Valve Compatible with 12x1.75-2.25 12.5x1.75-2.25 12 ½ x 2 ¼ Road/MTB Bike Tyre Tubes

**Brand:** yunscm
**Price:** € 46.87
**Availability:** ✅ In Stock

## Summary

> 🚴‍♂️ Ride tougher, ride longer — never miss a beat with YunSCM heavy-duty tubes!

## Quick Answers

- **What is this?** YunSCM 2-PCS 12/12.5" Heavy Duty Bike Tubes 12/12.5x1.75/2.25(12 1/2 X 2 1/4) ETRTO 45/57-203 AV32 Schrader Valve Compatible with 12x1.75-2.25 12.5x1.75-2.25 12 ½ x 2 ¼ Road/MTB Bike Tyre Tubes by yunscm
- **How much does it cost?** € 46.87 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fi](https://www.desertcart.fi/products/395784961-yunscm-2-pcs-12-12-5-heavy-duty-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:** 40% thicker butyl and EPDM rubber construction delivers ultra-durable, heavy-duty puncture resistance for longer rides and fewer replacements.
- • **Stay Inflated Longer:** Enhanced air tightness boosts inflation retention by 200%, reducing maintenance and keeping your ride smooth and safe.
- • **Effortless Installation:** Designed for quick, hassle-free fitting with clear valve positioning—get back on the road faster and stress-free.
- • **Shock Absorption Mastery:** Heavy-duty butyl rubber absorbs bumps and vibrations, transforming rough trails into comfortable journeys.
- • **Precision Fit for Versatility:** Compatible with a wide range of 12/12.5" tires from 1.75 to 2.25 inches, ensuring seamless upgrades or replacements.

## Overview

YunSCM 2-PCS heavy-duty bike tubes are engineered for 12 to 12.5-inch mountain bike tires, featuring 40% thicker butyl rubber for superior puncture resistance and 200% improved air retention. These tubes offer excellent shock absorption and easy installation, making them the ultimate upgrade for riders seeking durability, comfort, and reliability on every ride.

## Description

2-PCS 12/12.5" Heavy Duty Bike Tubes 12/12.5x1.75/2.25(12 1/2 X 2 1/4) ETRTO 45/57-203 AV32 Schrader Valve Compatible with 12x1.75-2.25 12.5x1.75-2.25 12 ½ x 2 ¼ Road/MTB Bike Tyre Tubes

## Features

- Compatible Size: 12/12.5x1.75/2.25(12 1/2 X 2 1/4) inch AV(45/57-203) bicycle heavy duty inner tube, enhanced the ductility of the heavy load tyre, so that these inner tubes are ideal for a wide range of applications, compatible with 12/12.5x1.75, 12/12.5x1.85, 12/12.5x1.95, 12/12.5x2.125, 12/12.5x2.20, 12/12.5x2.25, 12 1/2x2 1/4 tires.
- More Air Tightness: Adopting high elasticity and high quality butyl rubber and EPDM rubber, the thickness is increased by 40%, the air tightness of the inner tube is increased by 200% compared with the ordinary butyl inner tube; the tire can continuously maintain a stable inflation air pressure state after inflation, which dramatically reduces the frequency of inflation, and the good air tightness helps to keep the pressure of the tire stable, which improves the driving safety and efficiency
- 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: 12"/12.5"x1.75"/2.25" bicycle heavy duty replacement inner tube for easy installation and removal. Check the valve position to ensure that the installation direction is correct.
- Tip: Before installing the inner tube, please put the inner tube into the water for inspection, if there are bubbles, it means that it has been damaged, you can contact us. Check the valve position to ensure that the installation direction is correct. Note: The inflatable inner tube should avoid puncture by sharp objects.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Bike type | Mountain Bike |
| Color | Black |
| Size | 2 Count (Pack of 1) |
| Material type | Butyl Rubber |
| Number of items | 1 |
| Wheel size | 12.5 Inches |
| Batteries included? | No |
| Brand | YunSCM |
| Manufacturer | YunSCM |
| Item model number | GGG029 |
| Package Dimensions | 10.6 x 9.5 x 6.6 cm; 230 g |
| ASIN | B07S314SJY |

## Product Details

- **Brand:** YunSCM
- **Valve type:** Schrader
- **Material:** Butyl Rubber
- **Wheel size:** 12.5 Inches
- **Item diameter:** 12.5 Inches

## Images

![YunSCM 2-PCS 12/12.5" Heavy Duty Bike Tubes 12/12.5x1.75/2.25(12 1/2 X 2 1/4) ETRTO 45/57-203 AV32 Schrader Valve Compatible with 12x1.75-2.25 12.5x1.75-2.25 12 ½ x 2 ¼ Road/MTB Bike Tyre Tubes - Image 1](https://m.media-amazon.com/images/I/712ciqKuS4L.jpg)

## Frequently Bought Together

- 2-Pcs 12"/12.5" Heavy Duty Bike Tubes 12/12.5x1.75/2.25(12 1/2 X 2 1/4) AV Premium Butyl Rubber Inner Tubes Compatible with 12x1.75-2.25 12.5x1.75-2.25 12 ½ x 2 ¼ Bike Tire Tubes Schrader Valve
- Bell Standard and Self Sealing Bike Tubes
- 16'' x 1.5/1.75/1.95/2.125 Back Wheel Replacement Inner Tubes (2-Pack) Compatible with Graco Click/Go Jogging/BoB Revolution SE/Pro/Flex/SU - Made from BPA/Latex Free Butyl Rubber

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**Shop now:** [https://www.desertcart.fi/products/395784961-yunscm-2-pcs-12-12-5-heavy-duty-bike-tubes](https://www.desertcart.fi/products/395784961-yunscm-2-pcs-12-12-5-heavy-duty-bike-tubes)

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*Product available on Desertcart Finland*
*Store origin: FI*
*Last updated: 2026-03-11*