---
product_id: 448313860
title: "JOYSTAR 20 Inch Mountain Bike for Kids Ages 7-10 Year Old, 3-Inch Wide Knobby Tires, 7 Speed Drivetrain, Disc Brakes, Fat Tire Kids Bicycles for Boys Girls"
brand: "joystar"
price: "$1167.07"
currency: USD
in_stock: true
category: "Joystar"
url: https://www.desertcart.us/products/448313860-joystar-20-inch-mountain-bike-for-kids-ages-7-10
store_origin: US
region: United States of America
---

# Dual disc brakes for quick, reliable stopping 3-inch wide knobby fat tires for ultimate traction 7-speed drivetrain for smooth gear shifts JOYSTAR 20 Inch Mountain Bike for Kids Ages 7-10 Year Old, 3-Inch Wide Knobby Tires, 7 Speed Drivetrain, Disc Brakes, Fat Tire Kids Bicycles for Boys Girls

**Brand:** joystar
**Price:** $1167.07
**Availability:** ✅ In Stock

## Summary

> 🚴‍♀️ Fat tires, fierce rides—let your kid own every adventure!

## Quick Answers

- **What is this?** JOYSTAR 20 Inch Mountain Bike for Kids Ages 7-10 Year Old, 3-Inch Wide Knobby Tires, 7 Speed Drivetrain, Disc Brakes, Fat Tire Kids Bicycles for Boys Girls by joystar
- **How much does it cost?** $1167.07 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/448313860-joystar-20-inch-mountain-bike-for-kids-ages-7-10)

## 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

- • **Stop on a Dime:** Dual disc brakes provide fast, responsive stopping power for safer rides every time.
- • **Grip Like a Pro:** Extra-wide 3-inch knobby fat tires deliver unbeatable traction on sand, mud, snow, and pavement.
- • **Built for Big Kids:** Durable carbon steel frame supports riders 48-60 inches tall and up to 100 pounds with confidence.
- • **Ready to Ride Fast:** 85% pre-assembled with included tools and a limited lifetime warranty—get your kid on the trail in no time.
- • **Conquer Every Trail:** 7-speed Shimano drivetrain makes hills and rough terrain effortless for young adventurers.

## Overview

The JOYSTAR 20 Inch Mountain Bike is engineered for kids aged 7-13, featuring a sturdy carbon steel frame, 7-speed Shimano drivetrain, and wide 3-inch knobby fat tires for superior traction on all terrains. Dual disc brakes ensure quick, safe stops, while the bike’s 85% pre-assembled design and included tools make setup hassle-free. Designed for riders 48-60 inches tall and up to 100 pounds, this bike combines durability, performance, and safety with a limited lifetime warranty for peace of mind.

## Description

desertcart.com : JOYSTAR Blue 20 Inch Kids Mountain Bike, 7-Speed Shimano, Dual Disc Brake, Fat Tire Boy Girls Bicycle for Ages 7-12 Years : Sports & Outdoors

## 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 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 |
|---------------|-------|
| ASIN | B09Q2QBW64 |
| Additional Features | Disc Brakes, Fat Tire |
| Age Range (Description) | Big Kid |
| Age Range Description | Big Kid |
| Best Sellers Rank | #153,302 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #215 in Kids' Bicycles |
| Bicycle Drivetrain Type | Derailleur |
| Bicycle Gear Shifter Type | Twist Grip |
| Bike Type | Kids Bike, Mountain Bike |
| Brake Style | Disc |
| Brand | JOYSTAR |
| Brand Name | JOYSTAR |
| Color | Blue |
| Customer Reviews | 4.0 out of 5 stars 287 Reviews |
| Derailleur Configuration | Rear |
| Frame Material Type | Carbon Steel |
| Included Components | kickstand, reflectors |
| Is Assembly Required | Yes |
| Manufacturer | Sugoo Cycles Ltd. |
| Maximum Weight Recommendation | 100 Pounds |
| Minimum User Height | 48 Inches |
| Model Name | Minifat |
| Number Of Speeds | 7 |
| Number of Handles | 1 |
| Number of Speeds | 7 |
| Power Source | Pedal power (human energy transferred through a drivetrain) |
| Seat Material | Synthetic Leather or Plastic |
| Size | 20 Inch Wheels |
| Specific Uses For Product | Trail |
| Style Name | Mountain |
| Suspension Type | Rigid |
| Theme | Outdoor Adventure |
| Warranty Description | Limited Lifetime Warranty |
| Warranty Type | Limited |
| Wheel Material | Alloy Steel |
| Wheel Size | 20 Inches |

## Product Details

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

## Images

![JOYSTAR 20 Inch Mountain Bike for Kids Ages 7-10 Year Old, 3-Inch Wide Knobby Tires, 7 Speed Drivetrain, Disc Brakes, Fat Tire Kids Bicycles for Boys Girls - Image 1](https://m.media-amazon.com/images/I/71PV0mqVi+L.jpg)
![JOYSTAR 20 Inch Mountain Bike for Kids Ages 7-10 Year Old, 3-Inch Wide Knobby Tires, 7 Speed Drivetrain, Disc Brakes, Fat Tire Kids Bicycles for Boys Girls - Image 2](https://m.media-amazon.com/images/I/61W9LILFttL.jpg)
![JOYSTAR 20 Inch Mountain Bike for Kids Ages 7-10 Year Old, 3-Inch Wide Knobby Tires, 7 Speed Drivetrain, Disc Brakes, Fat Tire Kids Bicycles for Boys Girls - Image 3](https://m.media-amazon.com/images/I/61-8klSM5zL.jpg)
![JOYSTAR 20 Inch Mountain Bike for Kids Ages 7-10 Year Old, 3-Inch Wide Knobby Tires, 7 Speed Drivetrain, Disc Brakes, Fat Tire Kids Bicycles for Boys Girls - Image 4](https://m.media-amazon.com/images/I/71rCumAGhCL.jpg)
![JOYSTAR 20 Inch Mountain Bike for Kids Ages 7-10 Year Old, 3-Inch Wide Knobby Tires, 7 Speed Drivetrain, Disc Brakes, Fat Tire Kids Bicycles for Boys Girls - Image 5](https://m.media-amazon.com/images/I/71XXgKi8vTL.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

- 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
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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-07-12*