--- product_id: 448260440 title: "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: "$1331.41" currency: USD in_stock: true reviews_count: 13 category: "Joystar" url: https://www.desertcart.us/products/448260440-20-inch-mountain-bike-for-kids-ages-7-10-year store_origin: US region: United States of America --- # Dual disc brakes for superior stopping power 3-inch wide knobby fat tires for ultimate traction 7-speed drivetrain for smooth gear shifts 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:** $1331.41 **Availability:** ✅ In Stock ## Summary > 🚴‍♀️ Ride Bold, Ride Beyond – The Ultimate Kids’ Mountain Bike Experience! ## Quick Answers - **What is this?** 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?** $1331.41 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/448260440-20-inch-mountain-bike-for-kids-ages-7-10-year) ## 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 - • **Built to Endure:** Durable carbon steel frame and alloy wheels withstand rough play and rugged trails season after season. - • **Ready to Ride Fast:** 85% pre-assembled with included tools and lifetime warranty—get your kid exploring in no time. - • **Safety First, Always:** Dual disc brakes provide quick, reliable stopping power to keep kids confidently in control. - • **Conquer Every Terrain:** 3-inch fat tires deliver unmatched grip on sand, mud, snow, and pavement—no trail too tough. - • **Effortless Gear Shifting:** 7-speed twist shifters make uphill climbs and speedy descents a breeze for young adventurers. ## Overview The JOYSTAR 20 Inch Mountain Bike is engineered for kids aged 7-10, featuring a robust carbon steel frame, 3-inch wide knobby fat tires for superior traction on all terrains, and a 7-speed drivetrain for versatile riding. Equipped with dual disc brakes for enhanced safety and quick response, this bike combines durability with comfort, including a soft vinyl seat and non-slip pedals. With 85% assembly out of the box and a limited lifetime warranty, it’s the perfect all-terrain companion for young riders ready to explore confidently. ## Description Product description Go Anywhere 20 x 3-inch all terrain fat tires provide extra stability on dirt, sand, and snow. Go Anywhere 20 x 3-inch all terrain fat tires provide extra stability on dirt, sand, and snow. Strong Disc Brakes Disc brakes give you superior stopping power and speed control. Strong Disc Brakes Disc brakes give you superior stopping power and speed control. Built to Last This hardtail mountain frame delivers on durability Built to Last This hardtail mountain frame delivers on durability Get it in Gear 7-speed twist shifters make it easy to adapt to your terrain. Get it in Gear 7-speed twist shifters make it easy to adapt to your terrain. hero-video JOYSTAR 20 Inch Kids Bike for Big Kids Minifat Gemsbok Contender Brockway BMX Bikes Manteca Banana Seat Beachside Crusier Review: great product - Great product. Review: Great kids bike - I really like the sturdiness of this bike. Gave it to kiddo two months ago and she rides it daily. One of her favorite play time activities. The kickstand is sturdy, gears shift easily and the broad tires help with out uneven terrain. ## 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 | B09Q2N2DTN | | Additional Features | Disc Brakes, Fat Tire | | Age Range (Description) | Big Kid | | Age Range Description | Big Kid | | Best Sellers Rank | #166,522 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #221 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 | Black | | Customer Reviews | 4.0 out of 5 stars 287 Reviews | | Derailleur Configuration | Rear | | Frame Material Type | Carbon Steel | | Gear Type | derailleur | | Included Components | Kickstand, Reflectors | | Intended Riding Terrain | Mountain Terrain, Unpaved Trails | | Is Assembly Required | Yes | | Is Autographed | No | | Item Weight | 13.15 Kilograms | | Manufacturer | Sugoo Cycles Ltd. | | Maximum Weight Recommendation | 150 Pounds | | Minimum User Height | 48 Inches | | Model Name | Minifat | | Model Year | 2021 | | Number Of Speeds | 7 | | Number of Handles | 1 | | Number of Speeds | 7 | | Power Source | Pedal power | | Seat Material | Vinyl | | Size | 20 Inch Wheels | | Specific Uses For Product | Mountain | | Style Name | Mountain | | Suspension Type | Rigid | | Warranty Description | Limited Lifetime Warranty | | Warranty Type | Limited Lifetime Warranty | | Wheel Material | Alloy Steel | | Wheel Size | 20 Inches | ## Product Details - **Age Range (Description):** Kids - **Bike Type:** Mountain Bike - **Brand:** JOYSTAR - **Color:** Black - **Frame Material:** Carbon Steel - **Included Components:** Kickstand, Reflectors - **Number of Speeds:** 7 - **Special Feature:** Lightweight - **Suspension Type:** Rigid - **Wheel Size:** 20 Inches ## Images ![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/71M55scD6jL.jpg) ## 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 ## Customer Reviews ### ⭐⭐⭐⭐⭐ great product *by T***A on May 1, 2026* Great product. ### ⭐⭐⭐⭐⭐ Great kids bike *by D***Y on February 15, 2026* I really like the sturdiness of this bike. Gave it to kiddo two months ago and she rides it daily. One of her favorite play time activities. The kickstand is sturdy, gears shift easily and the broad tires help with out uneven terrain. ### ⭐⭐⭐⭐ Struggle Assembling Bike *by W***A on December 25, 2025* I bought this bike for my little brother that lives a couple of states away from me, and my mom had a difficult time putting the bike together since it came with NO INSTRUCTIONS!! We even tried going on the website to find a demo of how to put it together and absolutely nothing on this bike, I was not going to pay an extra 180$ to have it pre assembled. At least give people instructions on how to build it, if you’re going to charge double the price to have it pre built. He loved it regardless, but it sucked not being able to help my mom more when building the bike. Will not be buying from this brand again, they obviously want you to struggle if you don’t buy the pre assembled. ## 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 - Kids Helmet, SIFVO Kids Bike Helmet Boys and Girls Bike Helmet with Cool Visor Helmet for Kids 5-14, Kids Bike Helmets Youth Bike Helmet Adjustable & Lightweight 50-57cm - Kids Bike Helmet, Adjustable Youth Boys Girls Helmets for Ages 3-5-8-14 Years (50-57cm), Child Helmet with Visor and LED Light, Lightweight Multi-Sport Bicycle Scooter Skate Cycling Helmets --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.us/products/448260440-20-inch-mountain-bike-for-kids-ages-7-10-year](https://www.desertcart.us/products/448260440-20-inch-mountain-bike-for-kids-ages-7-10-year) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-07-11*