---
product_id: 693420985
title: "Flatrock"
brand: "mongoose"
price: "HK$9221"
currency: HKD
in_stock: true
reviews_count: 10
category: "Mongoose"
url: https://www.desertcart.hk/products/693420985-flatrock
store_origin: HK
region: Hong Kong
---

# Knobby mountain tires Aluminum hardtail frame 21-speed twist shifters Flatrock

**Brand:** mongoose
**Price:** HK$9221
**Availability:** ✅ In Stock

## Summary

> 🚵‍♀️ Own the trail, don’t just ride it!

## Quick Answers

- **What is this?** Flatrock by mongoose
- **How much does it cost?** HK$9221 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/693420985-flatrock)

## Best For

- mongoose enthusiasts

## Why This Product

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

## Key Features

- • **Lightweight Durability:** Aluminum frame and double-wall alloy rims combine strength with easy handling.
- • **Smooth Ride Suspension:** Element front fork absorbs bumps for effortless control on rugged terrain.
- • **Precision Gear Shifting:** 21-speed twist shifters deliver seamless transitions for climbs and descents.
- • **Reliable Stopping Power:** Alloy V-brakes ensure confident, responsive braking on any trail.
- • **Trail-Ready Versatility:** From 24" to 29" wheels, fits riders 4'4" to 6'0" for all-ages adventure.

## Overview

The Mongoose Flatrock is a versatile mountain bike designed for youth and adults, featuring a lightweight aluminum hardtail frame, front suspension fork, and 21-speed twist shifters. Equipped with knobby tires and reliable alloy V-brakes, it offers smooth, controlled rides across varied terrains. Perfect for riders between 4'4" and 6'0", this bike blends durability with performance to fuel your next outdoor adventure.

## Description

Explore rad new trails with the Flatrock mountain bike by Mongoose. The Flatrock comes equipped with a lightweight aluminum hardtail frame and Element suspension fork that are ready to tear down the trail. 21-speed twist shifters and rear derailleur provide effortless gear changes, while alloy v-brakes deliver reliable stopping power. Plus, double wall alloy rims offer lightweight durability. Get out there and explore with the Mongoose Flatrock.

Review: My Go-To for Fun and Adventure! - If you're looking for a bike that's ready for anything, whether it's cruising around the neighborhood or hitting some easy trails, the Mongoose Flatrock is an awesome choice. I've been riding mine, and it's just a fantastic, reliable bike that makes getting out and about a joy. First off, it's really comfortable to ride. The front suspension (that's the "hardtail" part, meaning suspension in the front fork) does a great job soaking up bumps and uneven paths, so your arms and body don't take a beating. This makes longer rides or slightly rougher terrain much more enjoyable. Changing gears is super easy with the 21-speed twist shifters. Whether you're going uphill and need a lower gear, or flying downhill and want to pick up speed, a simple twist of the wrist gets you where you need to be. It shifts smoothly, so you're never struggling to find the right gear. I also really appreciate how lightweight yet sturdy it feels. It's easy to maneuver, which is great for weaving through paths or even just getting it on and off a bike rack. And when you need to stop, the brakes are reliable and give you plenty of stopping power. Overall, the Mongoose Flatrock is a fantastic bike for anyone who wants to enjoy the outdoors. It's built tough, rides smoothly, and is just a lot of fun. Whether you're a casual rider or looking to explore a bit more, this bike is a great companion!
Review: The kiddo likes it. - I had a little bit of trouble getting the breaks set correctly but that was definitely my own incompetence. I watched a YouTube video & was eventually able figure it out. Overall it's a great kid's bike and very pretty!

## Features

- ADULT AND YOUTH MOUNTAIN BIKE: Hit up the trails with the Flatrock by Mongoose. Featuring 24, 26 or 29-inch wheels, this bike is perfect for riders from 4'4" - 6'0" tall. Built for adult and youth riders, this bicycle brings everyone in on the fun.
- BORN IN DIRT: From singletrack to crushed gravel paths, the aluminum mountain frame is built for adventure. With a sloping top tube, this adults, girls and boys mountain bike offers a modern look.
- BUILT FOR ADVENTURE: This Mongoose bike is ready to roll with knobby mountain tires for superior grip and stability. The suspension fork absorbs bumps and uneven terrain, ensuring a smooth, controlled ride.
- SHIFT INTO GEAR: This 21 or 7-speed bike features twist shifters for smooth transitions and the right gear for climbs and descents. Linear pull brakes provide reliable stopping power, giving riders control on varied terrain.
- KNOW YOUR ROOTS: As one of the OGs in BMX and action sports, Mongoose has helped bring this movement to the world. For over 50 years, we've been all about epic rides and pushing limits – and we're just getting started.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0DL77TV7H |
| Age Range (Description) | Youth |
| Assembly Required | Yes |
| Best Sellers Rank | #99,674 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #11,380 in Cycling Equipment |
| Bicycle Drivetrain Type | Derailleur |
| Bicycle Gear Shifter Type | Twist Grip |
| Bike Type | Mountain Bike |
| Brake Style | V Brake |
| Brand | Mongoose |
| Brand Name | Mongoose |
| Color | Mint |
| Customer Reviews | 4.1 4.1 out of 5 stars (416) |
| Date First Available | October 28, 2024 |
| Derailleur Configuration | Rear |
| Frame Material | Aluminum |
| Frame Size | 14.5 Inches |
| Frame Type | Hard Tail |
| Included Components | Kickstand, Mountain Bike, Reflectors |
| Item Dimensions LxWxH | 64.37 x 26.77 x 36.22 inches |
| Item Package Dimensions L x W x H | 50 x 26.1 x 10 inches |
| Item Weight | 33.18 Pounds |
| Manufacturer | Pacific Cycle, Inc. |
| Material | Steel |
| Maximum Weight Recommendation | 33.18 Pounds |
| Minimum User Height | 52 Inches |
| Model Name | Flatrock |
| Number of Items | 1 |
| Number of Speeds | 7 |
| Package Weight | 17.69 Kilograms |
| Part Number | M2897G25F1OS |
| Power Source | Pedal Power |
| Seat Material Type | Plastic |
| Size | 14.5-Inch Frame/24-Inch Wheels |
| Skill Level | Beginner |
| Special Feature | Adjustable Seat, Durable, Multi-Speed, Quick Release Seat |
| Specific Uses For Product | Trail |
| Style | Mountain |
| Suspension Type | Front |
| UPC | 038675287976 |
| Warranty Description | 5 year limited warranty on frame. 1 year limited warranty on parts. 30 day limited warranty on wearable parts. |
| Warranty Type | Limited |
| Wheel Material | Aluminum |
| Wheel Size | 24 Inches |
| Wheel Width | 2.3 Inches |
| Year | 2025 |

## Product Details

- **Age Range (Description):** Youth
- **Bike Type:** Mountain Bike
- **Brand:** Mongoose
- **Color:** Mint
- **Frame Material:** Aluminum
- **Included Components:** Kickstand, Mountain Bike, Reflectors
- **Number of Speeds:** 7
- **Special Feature:** Adjustable Seat, Durable, Multi-Speed, Quick Release Seat
- **Suspension Type:** Front
- **Wheel Size:** 24 Inches

## Images

![Flatrock - Image 1](https://m.media-amazon.com/images/I/817PuTKFRCL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ My Go-To for Fun and Adventure!
*by B***N on May 22, 2025*

If you're looking for a bike that's ready for anything, whether it's cruising around the neighborhood or hitting some easy trails, the Mongoose Flatrock is an awesome choice. I've been riding mine, and it's just a fantastic, reliable bike that makes getting out and about a joy. First off, it's really comfortable to ride. The front suspension (that's the "hardtail" part, meaning suspension in the front fork) does a great job soaking up bumps and uneven paths, so your arms and body don't take a beating. This makes longer rides or slightly rougher terrain much more enjoyable. Changing gears is super easy with the 21-speed twist shifters. Whether you're going uphill and need a lower gear, or flying downhill and want to pick up speed, a simple twist of the wrist gets you where you need to be. It shifts smoothly, so you're never struggling to find the right gear. I also really appreciate how lightweight yet sturdy it feels. It's easy to maneuver, which is great for weaving through paths or even just getting it on and off a bike rack. And when you need to stop, the brakes are reliable and give you plenty of stopping power. Overall, the Mongoose Flatrock is a fantastic bike for anyone who wants to enjoy the outdoors. It's built tough, rides smoothly, and is just a lot of fun. Whether you're a casual rider or looking to explore a bit more, this bike is a great companion!

### ⭐⭐⭐⭐⭐ The kiddo likes it.
*by R***. on February 11, 2024*

I had a little bit of trouble getting the breaks set correctly but that was definitely my own incompetence. I watched a YouTube video & was eventually able figure it out. Overall it's a great kid's bike and very pretty!

### ⭐⭐⭐⭐ Nice bike
*by L***S on May 26, 2024*

Still working on it to get it 100% functionable . Many screws and bolts still not tight. Best to take it to a bike shop to assemble . My bike has an issue with the chain guard . An issue with the person at mongoose who assemble this bike . I do think it be a nice bike once everything works like it suppose too . Amazon had a good price too .

## Frequently Bought Together

- Mongoose Flatrock 21-Speed Hardtail Mountain Bike, 24 to 29-Inch Wheels, for Men Women Boys and Girls, Front Suspension, 14.5 to 18-Inch Aluminum Frame Options
- Schwinn Thrasher Bike Helmet for Adult Men Women Age 14+ with Suggested Fit 58-62cm, Multi-Mode Rear LED Light or No Light Option, Lightweight with Adjustable Side and Chin Strap, Bike Accessories
- Ascher Ultra Bright USB Rechargeable Bike Light Set, Powerful Bicycle Front Headlight and Back Taillight, 4 Light Modes, Easy to Install for Men Women Kids Road Mountain Cycling Black

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**Shop now:** [https://www.desertcart.hk/products/693420985-flatrock](https://www.desertcart.hk/products/693420985-flatrock)

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*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-01-24*