---
product_id: 451458581
title: "JOYSTAR 20 Inch Mountain Bike for Kids Ages 7-12 Year Old, 3-Inch Wide Knobby Tires, 7 Speed Shimano Drivetrain, Disc Brakes, Fat Tire Kids Bicycles for Boys Girls"
brand: "joystar"
price: "A$890"
currency: AUD
in_stock: true
url: https://www.desertcart.com.au/products/451458581-joystar-20-inch-mountain-bike-for-kids-ages-7-12
store_origin: AU
region: Australia
---

# Dual disc brakes for quick, reliable stopping power 3-inch wide knobby fat tires for ultimate traction 7-speed Shimano drivetrain for smooth gear shifts JOYSTAR 20 Inch Mountain Bike for Kids Ages 7-12 Year Old, 3-Inch Wide Knobby Tires, 7 Speed Shimano Drivetrain, Disc Brakes, Fat Tire Kids Bicycles for Boys Girls

**Brand:** joystar
**Price:** A$890
**Availability:** ✅ In Stock

## Summary

> 🚴‍♀️ Ride Bold, Ride Free — The Ultimate Fat Tire Adventure Awaits!

## Quick Answers

- **What is this?** JOYSTAR 20 Inch Mountain Bike for Kids Ages 7-12 Year Old, 3-Inch Wide Knobby Tires, 7 Speed Shimano Drivetrain, Disc Brakes, Fat Tire Kids Bicycles for Boys Girls by joystar
- **How much does it cost?** A$890 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/451458581-joystar-20-inch-mountain-bike-for-kids-ages-7-12)

## Best For

- joystar enthusiasts

## Why This Product

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

## Key Features

- • **Ready to Ride Fast:** 85% pre-assembled out of the box with included tools and lifetime warranty—get your kid on the trail faster and worry-free.
- • **Safety First, Always:** Dual disc brakes provide instant stopping power, while non-slip pedals with reflectors keep every ride secure and visible.
- • **Conquer Every Terrain:** Fat 20x3 inch knobby tires deliver unmatched grip on sand, mud, snow, and pavement—ride anywhere with confidence.
- • **Effortless Gear Shifting:** 7-speed Shimano drivetrain with twist grip shifters makes uphill climbs and speedy descents a breeze for young adventurers.
- • **Built for Growing Explorers:** Durable carbon steel frame supports kids aged 7-12 (48-60 inches tall) with a comfy saddle designed for longer rides.

## Overview

The JOYSTAR 20 Inch Mountain Bike is engineered for kids aged 7-12, featuring a rugged carbon steel frame, wide 3-inch knobby fat tires for superior traction, and a 7-speed Shimano drivetrain for smooth shifting. Equipped with dual disc brakes and non-slip pedals, it ensures safety on all terrains. Lightweight yet durable, this bike comes 85% pre-assembled with a comfort saddle and lifetime warranty, making it the perfect all-terrain companion for young riders ready to explore.

## Description

JOYSTAR 20 Inch Mountain Bike for Kids Ages 7-12 Year Old, 3-Inch Wide Knobby Tires, 7 Speed Shimano Drivetrain, Disc Brakes, Fat Tire Kids Bicycles for Boys Girls

## Features

- Mountain Bike for Kids: JOYSTAR Minifat 20 Inch Fat Tire bike for kids is designed for 7-13 years children. The steel frame, wider fat tires and dual handbrakes are great for cruising along uneven regions. The suggested rider height is 48 to 60 inches
- Excellent Shifting: A Shimano rear derailleur with 7 speeds drivetrain makes hills easier to climb, while twist shifters make it smooth and easy to change gears while riding.
- Safer Riding Trails: The Dual Disc Brakes have excellent braking with a quick response time; Non-slip resin pedals with reflectors; The fat tires also do an excellent job of generating enough traction on any surface – sand, bogs, mud, snow or pavement.
- Fat Tires For More Fun: 20 x 3.0 inch knobby mountain fat tires provide excellent stopping power and tons of traction in sand and snow. DIY decals to name the bike add extra fun to the ride. This kids bike with soft seat offers more comfort in riding
- Easy to Assemble: JOYSTAR 20 Inch Kids bike for all-terrain adventures comes with 85% assembled body and the basic assembly tools, timely customer service and also limited lifetime warranty

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Bike Type | Mountain Bike |
| Age Range (Description) | Kids |
| Brand | JOYSTAR |
| Number of Speeds | 7 |
| Color | White |
| Wheel Size | 20 Inches |
| Frame Material | Carbon Steel |
| Suspension Type | Rigid |
| Special Feature | Lightweight |
| Included Components | kickstand, reflectors |
| Size | 20 Inch Wheels |
| Brake Style | Disc |
| Specific Uses For Product | All-terrain, off-road cycling |
| Item Weight | 17.83 Kilograms |
| Theme | outdoor recreation |
| Style | Rugged |
| Model Name | Gemsbok |
| Power Source | Human-powered |
| Wheel Material | Alloy Steel |
| Seat Material Type | Comfort Saddle (or similar) |
| Warranty Type | Limited |
| Assembly Required | Yes |
| Bicycle Gear Shifter Type | Twist Grip |
| Minimum User Height | 48 Inches |
| Bicycle Drivetrain Type | Derailleur |
| Manufacturer | Sugoo Cycles Ltd. |
| Item Package Dimensions L x W x H | 50.39 x 23.62 x 7.87 inches |
| Package Weight | 18 Kilograms |
| Brand Name | JOYSTAR |
| Material | Carbon Steel |
| Suggested Users | unisex-child |
| Part Number | BIKE062mg-20-XG |

## Product Details

- **Bike Type:** Mountain Bike
- **Age Range (Description):** Kids
- **Brand:** JOYSTAR
- **Number of Speeds:** 7
- **Color:** White
- **Wheel Size:** 20 Inches
- **Frame Material:** Carbon Steel
- **Suspension Type:** Rigid
- **Special Feature:** Lightweight
- **Included Components:** kickstand, reflectors

## Images

![JOYSTAR 20 Inch Mountain Bike for Kids Ages 7-12 Year Old, 3-Inch Wide Knobby Tires, 7 Speed Shimano Drivetrain, Disc Brakes, Fat Tire Kids Bicycles for Boys Girls - Image 1](https://m.media-amazon.com/images/I/71wywC41QWL.jpg)

## Available Options

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

## Questions & Answers

**Q: I cannot find any information about how to raise the handlebar on this bike.  Anyone know how to do it?**
A: Take a wrench on the bolt that holds the handlebar in place. Lefty Losey righty tightly. Losen the bolt, pull up and tighten the bolt, and be sure to keep the handlebars straight and true with the front tire. The handlebars have little play, but you can bring them up.

**Q: How do you adjust the handlebars to go up?**
A: On the littlerock version you can't adjust the handle bars. Because of this we had to return and get the Pluto version.

**Q: How much does this bike weigh??**
A: Tho I’m not sure on exact weight my wife has no issue picking it up with one hand and loading it in the back of our truck

## Frequently Bought Together

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**Shop now:** [https://www.desertcart.com.au/products/451458581-joystar-20-inch-mountain-bike-for-kids-ages-7-12](https://www.desertcart.com.au/products/451458581-joystar-20-inch-mountain-bike-for-kids-ages-7-12)

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*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-01-24*