---
product_id: 592160683
title: "YunSCM 2PCS 12.5 Kid Bike Tyre 12 1/2x2 1/4 (12.5x2.25) ETRTO 57-203 and 12/12.5\" Inner Tubes SV/AV32mm Valve, Compatible12 1/2 x 2 1/4 12.5x2.25 Child Road Bike Bicycle Tyre and Tube"
brand: "yunscm"
price: "A$118"
currency: AUD
in_stock: true
reviews_count: 11
category: "Yun Scm"
url: https://www.desertcart.com.au/products/592160683-yunscm-2pcs-12-5-kid-bike-tyre-12-1-2x2
store_origin: AU
region: Australia
---

# 40 PSI max inflation strength 12.5-inch perfect urban fit durable rubber + nylon cord tech YunSCM 2PCS 12.5 Kid Bike Tyre 12 1/2x2 1/4 (12.5x2.25) ETRTO 57-203 and 12/12.5" Inner Tubes SV/AV32mm Valve, Compatible12 1/2 x 2 1/4 12.5x2.25 Child Road Bike Bicycle Tyre and Tube

**Brand:** yunscm
**Price:** A$118
**Availability:** ✅ In Stock

## Summary

> 🚴‍♂️ Upgrade your ride, own the city streets!

## Quick Answers

- **What is this?** YunSCM 2PCS 12.5 Kid Bike Tyre 12 1/2x2 1/4 (12.5x2.25) ETRTO 57-203 and 12/12.5" Inner Tubes SV/AV32mm Valve, Compatible12 1/2 x 2 1/4 12.5x2.25 Child Road Bike Bicycle Tyre and Tube by yunscm
- **How much does it cost?** A$118 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/592160683-yunscm-2pcs-12-5-kid-bike-tyre-12-1-2x2)

## 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 Last:** High-quality rubber and advanced nylon cord technology ensure superior grip and long-lasting wear resistance.
- • **Effortless Upgrade:** Transform your child’s bike or urban ride with these premium tires and tubes for a smoother, safer journey.
- • **Smooth Urban Glide:** Engineered for flat city roads, these tires deliver a sleek, comfortable ride every time.
- • **Perfect Fit Compatibility:** Designed to flawlessly match 12 ½ x 2 ¼ (57-203 ETRTO) bike wheels for hassle-free installation.
- • **Heavy-Duty Inner Tubes Included:** Comes with 2 AV32mm valve tubes built to withstand pressure up to 40 PSI, supporting loads up to 40kg.

## Overview

YunSCM’s 2PCS 12.5-inch bike tires and heavy-duty inner tubes combine durable rubber and nylon cord technology to provide a smooth, reliable ride on urban roads. Rated for 40 PSI inflation and supporting up to 40kg load, these tires fit 12 ½ x 2 ¼ wheels perfectly, making them an ideal upgrade for kids’ bikes or light urban cycling.

## Description

Shop YunSCM 2PCS 12.5 Bike Tyre 12 1/2x2 1/4 (12.5x2.25) Tires ETRTO 57-203 and 12.5" Heavy Duty Inner Tubes AV32mm Valve, Compatible12 1/2 x 2 1/4 12.5x2.25 Child Road Bike Bicycle Tyre and Tube. Free delivery and returns on all eligible orders.

Review: Not as easy as changing a larger bike tyre. - I bought these tyre's for my dads wheel chair as the ones it comes with are solid and give a very bumpy ride. I did manage to fit them myself but if you have never done this type of job before i would strongly recommend letting a bike repair shop do the job as you have to cut off the existing solid tyre's so theres no going back. Overall im really pleased with them and hopefully they will give a much smoother ride. One thing else to point out is they are directional so you need to check the direction of the arrows before you choose your left and right wheels.
Review: Perfect replacement tyres! - These tyres fit perfectly, were easy to install, and made the buggy glide like new again. Very happy with the purchase.

## Features

- Parameters: Bike Tire 12 ½ x 2 ¼ inflate to 40 PSI and 2.8 Bar (2.8Kgaf/c㎡280Kpa) LOAD 40KG (88 lbs）
- Practical:Smooth tread, urban style, perfect for riding on flat city roads.
- Ultra-durable: The tires are made of high quality rubber material and nylon cord technology, with strong grip and wear resistance.
- Compatible range: The size of the Bike Tire is 12 ½ x 2 ¼, which can match 12 ½ x 2 ¼ 12.5 x 2.25 12 1/2 x 2 1/4, which will not affect the use effect. lf you mind that the mode is not completely symmetrical, you can choose to buy other exactly the same model in the shop.
- Package Includes: 2-pcs 12 ½ x 2 ¼ bike tires，2-pcs AV32mm heavy duty bike tubes.
- Please check carefully for the details and size before purchase.
- Note: Upon receipt of the product, please check whether the steel wire of the tire lip is severely bent and unable to recover and the steel wire metal leakage. Before installing the tire, check the rim tire for no burr before installing. If the inner tube bursts after installation, please check the tire again before replacing it to see if it is damaged, especially to check whether the outer tire has any broken lip steel wire, metal leakage, or cord fabric breakage.
- such as extreme off-road riding,overloading,racing, modifications, or improper installation is not covered under warranty. For special equirements, please contact us via desertcart lessages before purchase for confirmatior.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09N9DBJLJ |
| Batteries included? | No |
| Best Sellers Rank | 72,563 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) 641 in Tyres (Sports & Outdoors) 752 in Cycling Tubes |
| Bike type | Urban Bike |
| Brand | YunSCM |
| Color | Black |
| Customer Reviews | 4.6 4.6 out of 5 stars (270) |
| Date First Available | 8 Dec. 2021 |
| Included components | 2-pcs 12 ½ x 2 ¼ bike tires，2-pcs AV32mm heavy duty bike tubes. |
| Item model number | YW2021004 |
| Manufacturer | YunSCM |
| Material type | Rubber |
| Number of items | 4 |
| Product Dimensions | 31.75 x 5.72 x 31.75 cm; 1.09 kg |
| Size | 12 1/2x2 1/4 (12.5x2.25) ETRTO 57-203 |
| Style | Bike Tyre Style 2 |
| Wheel size | 12.5 Inches |

## Product Details

- **Bike type:** Urban Bike
- **Brand:** YunSCM
- **Item diameter:** 12.5 Inches
- **Item width:** 5.7 Centimetres
- **Material:** Rubber
- **Tensile Strength:** 40 Pounds Per Square Inch
- **Tyre type:** Clincher
- **UPC:** 781509356217
- **Warranty type:** Limited
- **Wheel size:** 12.5 Inches

## Images

![YunSCM 2PCS 12.5 Kid Bike Tyre 12 1/2x2 1/4 (12.5x2.25) ETRTO 57-203 and 12/12.5" Inner Tubes SV/AV32mm Valve, Compatible12 1/2 x 2 1/4 12.5x2.25 Child Road Bike Bicycle Tyre and Tube - Image 1](https://m.media-amazon.com/images/I/81TzKC+ABbL.jpg)
![YunSCM 2PCS 12.5 Kid Bike Tyre 12 1/2x2 1/4 (12.5x2.25) ETRTO 57-203 and 12/12.5" Inner Tubes SV/AV32mm Valve, Compatible12 1/2 x 2 1/4 12.5x2.25 Child Road Bike Bicycle Tyre and Tube - Image 2](https://m.media-amazon.com/images/I/61D1Aa+pXmL.jpg)
![YunSCM 2PCS 12.5 Kid Bike Tyre 12 1/2x2 1/4 (12.5x2.25) ETRTO 57-203 and 12/12.5" Inner Tubes SV/AV32mm Valve, Compatible12 1/2 x 2 1/4 12.5x2.25 Child Road Bike Bicycle Tyre and Tube - Image 3](https://m.media-amazon.com/images/I/71wPoncyHKL.jpg)
![YunSCM 2PCS 12.5 Kid Bike Tyre 12 1/2x2 1/4 (12.5x2.25) ETRTO 57-203 and 12/12.5" Inner Tubes SV/AV32mm Valve, Compatible12 1/2 x 2 1/4 12.5x2.25 Child Road Bike Bicycle Tyre and Tube - Image 4](https://m.media-amazon.com/images/I/8173uvuwufL.jpg)
![YunSCM 2PCS 12.5 Kid Bike Tyre 12 1/2x2 1/4 (12.5x2.25) ETRTO 57-203 and 12/12.5" Inner Tubes SV/AV32mm Valve, Compatible12 1/2 x 2 1/4 12.5x2.25 Child Road Bike Bicycle Tyre and Tube - Image 5](https://m.media-amazon.com/images/I/71g2v1050ML.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Not as easy as changing a larger bike tyre.
*by T***N on 3 March 2026*

I bought these tyre's for my dads wheel chair as the ones it comes with are solid and give a very bumpy ride. I did manage to fit them myself but if you have never done this type of job before i would strongly recommend letting a bike repair shop do the job as you have to cut off the existing solid tyre's so theres no going back. Overall im really pleased with them and hopefully they will give a much smoother ride. One thing else to point out is they are directional so you need to check the direction of the arrows before you choose your left and right wheels.

### ⭐⭐⭐⭐⭐ Perfect replacement tyres!
*by C***4 on 18 November 2025*

These tyres fit perfectly, were easy to install, and made the buggy glide like new again. Very happy with the purchase.

### ⭐⭐⭐⭐⭐ Happy
*by L***L on 19 September 2025*

Good quality items

## Frequently Bought Together

- YunSCM 2 Pack 12.5 Kid Bike Tyre 12 1/2x2 1/4 (12.5x2.25) ETRTO 57/62-203 and 12.5" Heavy Duty Inner Tubes AV33mm Valve Compatible with 12 1/2 x 2 1/4 12.5 x 2.25 Child Road Bike Tyres and Tubes
- 2-PCS 12/12.5" Heavy Duty Bike Tubes 12/12.5x1.75/2.25(12 1/2 X 2 1/4) ETRTO 47/62-203 AV32mm Schrader Valve Inner Tubes Compatible with 12/12x1.75/1.95/2.10/2 ¼ Road/Push Kid Bike Tire Tube

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*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-03-11*