---
product_id: 724785821
title: "Mongoose Legion LXS Kids Freestyle Sidewalk BMX Bike Beginner Rider Boys Girls 20\" Wheels Hi-Ten Steel Frame Micro Drive 36x16T BMX Gear Red"
brand: "mongoose"
price: "฿16607"
currency: THB
in_stock: false
url: https://www.desertcart.co.th/products/724785821-mongoose-legion-lxs-kids-freestyle-sidewalk-bmx-bike-beginner-rider
store_origin: TH
region: Thailand
---

# 20" BMX wheels for agile rides Single-speed 36x16T drivetrain Hi-Ten steel frame built tough Mongoose Legion LXS Kids Freestyle Sidewalk BMX Bike Beginner Rider Boys Girls 20" Wheels Hi-Ten Steel Frame Micro Drive 36x16T BMX Gear Red

**Brand:** mongoose
**Price:** ฿16607
**Availability:** ❌ Out of Stock

## Summary

> 🚀 Ride Bold, Ride Red: The Ultimate Starter BMX for Future Legends!

## Quick Answers

- **What is this?** Mongoose Legion LXS Kids Freestyle Sidewalk BMX Bike Beginner Rider Boys Girls 20" Wheels Hi-Ten Steel Frame Micro Drive 36x16T BMX Gear Red by mongoose
- **How much does it cost?** ฿16607 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/724785821-mongoose-legion-lxs-kids-freestyle-sidewalk-bmx-bike-beginner-rider)

## 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

- • **Smooth Control:** Steel linear pull brakes deliver precise stopping power for safe, confident riding.
- • **Perfect First Ride:** Designed for young riders 4'0"-5'4" to confidently cruise and learn BMX basics.
- • **Durable Steel Frame:** Hi-Ten steel frame and forks ensure long-lasting strength and stability on every adventure.
- • **Optimized BMX Setup:** 36T chainring with 16T freewheel cassette offers ideal gearing for sidewalk freestyle fun.
- • **Lightweight & Responsive:** 20" x 2" tires on aluminum rims provide nimble handling and a smooth ride.

## Overview

The Mongoose Legion LXS is a 20-inch BMX-style bike tailored for beginner riders between 4'0" and 5'4". Featuring a durable Hi-Ten steel frame, single-speed 36x16T drivetrain, and precise steel linear pull brakes, it offers a reliable and responsive ride. Lightweight aluminum rims with 20" x 2" tires ensure agility and control, making it the perfect sidewalk cruiser for boys and girls stepping into BMX freestyle.

## Description

Mongoose has been riding in the mud, trails, and ramps for 45 years. In the Legion series, Mongoose offers a full line of freestyle BMX bikes for riders of all ages and ability. The Legion LXS is the perfect sidewalk cruiser for young riders looking for the first 20" BMX style bike. Legion LXS features a Hi-Ten steel frame (18.25" top tube), tapered head tube, mid-BB shell, and removable brake mount. LXS Hi-Ten steel 7" rise handlebars and 36mm stems are designed for precision riding. Aluminum single wall 36H rim and 2" BMX tires provide grip and durability when landing tricks. With one piece of forged steel 152mm crank and American loose ball bottom bracket, the 25x9T gear provides a clean, reliable drivetrain. Steel linear pull brake for speed control Hi-Ten steel BMX forks with 1-1/8" threadless steering for maximum performance. This bike comes ready to assemble and comes with a 5 year limited warranty on the frame and a 1 year limited warranty on the components.

## Features

- The Legion LXS is the perfect sidewalk cruiser for the young rider looking for the first 20" BMX style bike. Recommended height is 4'0"-5'4"
- Durable Hi-Ten steel frame and top tube length 18.25"
- Single speed drivetrain features a 152mm 1-piece crank with a 36T steel chainring and American loose ball bottom bracket
- Wheelset includes 20" x 2" tires mounted on aluminum single layer 36H rims, 3/8" female axle front hub and 16T cog free wheel cassette rear hub
- Steel linear pull brake provides precise speed control, Hi-Ten steel handlebars and forks are joined together with a 36mm stem and threaded headset, providing high quality steering performance

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Model Number | M51809M50OS-PC |
| Color | red |
| Size | 20-Inch Wheels/LSX |
| Material | Other Steel |
| Number of Speeds | 1 |
| Usage | Trail |
| Wheel Size | 20 Inches |
| Target Audience | Uni |
| Package Dimensions | 120.01 x 57.94 x 21.41 cm; 12.29 kg |
| Use Object | Youth - Boys |

## Product Details

- **Bike Type:** BMX Bike
- **Age Range (Description):** Little Kid
- **Brand:** Mongoose
- **Number of Speeds:** 1
- **Color:** red

## Images

![Mongoose Legion LXS Kids Freestyle Sidewalk BMX Bike Beginner Rider Boys Girls 20" Wheels Hi-Ten Steel Frame Micro Drive 36x16T BMX Gear Red - Image 1](https://m.media-amazon.com/images/I/71j9riOiV+L.jpg)
![Mongoose Legion LXS Kids Freestyle Sidewalk BMX Bike Beginner Rider Boys Girls 20" Wheels Hi-Ten Steel Frame Micro Drive 36x16T BMX Gear Red - Image 2](https://m.media-amazon.com/images/I/71RUPOVRyfL.jpg)
![Mongoose Legion LXS Kids Freestyle Sidewalk BMX Bike Beginner Rider Boys Girls 20" Wheels Hi-Ten Steel Frame Micro Drive 36x16T BMX Gear Red - Image 3](https://m.media-amazon.com/images/I/61exeIdrqTL.jpg)
![Mongoose Legion LXS Kids Freestyle Sidewalk BMX Bike Beginner Rider Boys Girls 20" Wheels Hi-Ten Steel Frame Micro Drive 36x16T BMX Gear Red - Image 4](https://m.media-amazon.com/images/I/71ClVKQCZNL.jpg)
![Mongoose Legion LXS Kids Freestyle Sidewalk BMX Bike Beginner Rider Boys Girls 20" Wheels Hi-Ten Steel Frame Micro Drive 36x16T BMX Gear Red - Image 5](https://m.media-amazon.com/images/I/71ELYiJhETL.jpg)

## Frequently Bought Together

- Mongoose Legion Kids Freestyle Sidewalk BMX Bike, Beginner Riders, Boys and Girls, 16-20-inch Wheels, Hi-Ten Steel Frame, Micro Drive BMX Gearing
- Zelerdo 2 Pairs Aluminum Alloy Bike Pegs for Mountain Bike Cycling Rear Stunt Pegs Fit 3/8 inch Axles
- Mongoose Legion Kids Freestyle BMX Bike, Intermediate Rider, Boys and Girls Bikes, 20-Inch Wheels, Hi-Ten Steel Frame, Micro Drive 25x9T BMX Gearing

---

## 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.co.th/products/724785821-mongoose-legion-lxs-kids-freestyle-sidewalk-bmx-bike-beginner-rider](https://www.desertcart.co.th/products/724785821-mongoose-legion-lxs-kids-freestyle-sidewalk-bmx-bike-beginner-rider)

---

*Product available on Desertcart Thailand*
*Store origin: TH*
*Last updated: 2026-01-24*