---
product_id: 148013933
title: "Mongoose Legion Kids Freestyle BMX Bike"
brand: "mongoose"
price: "¥123612"
currency: JPY
in_stock: false
category: "Mongoose"
url: https://www.desertcart.jp/products/148013933-mongoose-legion-kids-freestyle-bmx-bike
store_origin: JP
region: Japan
---

# 20-inch freestyle BMX frame 2.3-inch wide tires for grip 3-piece chromoly crank for power Mongoose Legion Kids Freestyle BMX Bike

**Brand:** mongoose
**Price:** ¥123612
**Availability:** ❌ Out of Stock

## Summary

> 🔥 Own the park, own the streets with Mongoose Legion! 🚲

## Quick Answers

- **What is this?** Mongoose Legion Kids Freestyle BMX Bike by mongoose
- **How much does it cost?** ¥123612 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/148013933-mongoose-legion-kids-freestyle-bmx-bike)

## 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

- • **Built to Progress:** Designed for riders 5'3" to 6'0" stepping up their BMX game with a perfect 20-inch frame.
- • **Legacy of Legends:** From the OGs of BMX, Mongoose brings 50+ years of pushing limits and epic ride culture.
- • **Grip That Commands:** Wide 2.3-inch tires deliver confident traction on every surface—park, street, or dirt.
- • **Smooth & Tough Ride:** 9T sealed rear hub and 14mm axle engineered to withstand BMX abuse and repeated landings.
- • **Power Meets Durability:** Lightweight chromoly crank ensures smooth power transfer for serious tricks and jumps.

## Overview

The Mongoose Legion Kids Freestyle BMX Bike is a 20-inch BMX designed for youth riders between 5'3" and 6'0". Featuring a lightweight 3-piece chromoly crank, wide 2.3-inch tires for superior grip, and a durable 9T sealed rear hub with a 14mm axle, it’s built to handle serious freestyle riding on park, street, and dirt terrains. Backed by Mongoose’s 50+ years of BMX heritage, this bike combines performance, durability, and style for the next generation of riders.

## Description

desertcart.com: Mongoose Legion L20 Kids Freestyle BMX Bike, Intermediate Rider, Boys and Girls Bikes, 20-Inch Wheels, Hi-Ten Steel Frame, Micro Drive 25x9T BMX Gearing, Grey/Orange : Everything Else

## Features

- L20 is a stylish freestyle BMX bike that offers everything a beginning rider needs to hit the streets and pop off curbs, Suggested rider height is 4’8”-5’4”
- Built to last with its Hi-Ten steel frame, removable brake mounts, and a top tube length of 20.25 inches
- Boasts a high-performance drivetrain equipped with 170mm one-piece forged steel cranks, a 25T alloy chainring, and an American loose ball bottom bracket
- Wheelset is equipped with 20” x 2.3” tires mounted on aluminum single wall 36H rims with 3/8” female axle front hub and 9T cog sealed bearing cassette rear hub
- Aluminum U-brake and brake levers provide precision speed control, while the Hi-Ten steel handlebar and fork are joined by a 50mm stem and threadless sealed integrated headset for maximum steering performance

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07W5KNZZX |
| Additional Features | Aluminum Frame, BMX, freestyle |
| Age Range Description | Big Kid |
| Best Sellers Rank | #77,970 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #10,790 in Cycling Equipment |
| Bicycle Drivetrain Type | chain drive |
| Bike Type | BMX Bike |
| Brake Style | U Brake |
| Brand Name | Mongoose |
| Color | Grey |
| Customer Reviews | 4.4 4.4 out of 5 stars (2,147) |
| Derailleur Configuration | Rear |
| Frame Material Type | High Tensile Steel |
| Gear Type | cassette |
| Global Trade Identification Number | 00038675187184 |
| Included Components | Mongoose Legion L20 Freestyle BMX Bike |
| Intended Riding Terrain | BMX Terrain, Unpaved Trails, Urban Terrain |
| Item Type Name | BMX Freestyle Bike |
| Item Weight | 12 kg |
| Manufacturer | Pacific Cycle, Inc. |
| Minimum User Height | 48 inches |
| Model Name | Legion Intermediate |
| Model Number | M41800U20OS-PC |
| Model Year | 2020 |
| Number Of Speeds | 1 |
| Number of Handles | 1 |
| Power Source | Pedal power (human energy transferred through a drivetrain) |
| Seat Material | Fabric or Plastic |
| Size | 20-Inch Wheels/L20 |
| Skill Level | Intermediate |
| Specific Uses For Product | Trail |
| Style Name | L20 |
| Suspension Type | Rigid |
| Theme | BMX Freestyle |
| UPC | 038675187184 |
| Unit Count | 1 Count |
| Warranty Description | Limited lifetime warranty on frame and one year warranty on parts |
| Warranty Type | Limited |
| Wheel Material | Aluminum |
| Wheel Size | 20 inches |

## Product Details

- **Age Range (Description):** Big Kid
- **Bike Type:** BMX Bike
- **Brand:** Mongoose
- **Color:** Grey
- **Frame Material:** High Tensile Steel
- **Included Components:** Mongoose Legion L20 Freestyle BMX Bike
- **Number of Speeds:** 1
- **Special Feature:** Aluminum Frame, BMX, freestyle
- **Suspension Type:** Rigid
- **Wheel Size:** 20 inches

## Images

![Mongoose Legion Kids Freestyle BMX Bike - Image 1](https://m.media-amazon.com/images/I/71DAu43Uj0L.jpg)

## Available Options

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

## Frequently Bought Together

- Mongoose Legion Kids Freestyle BMX Bike, Intermediate Rider, Boys and Girls Bikes, 20-Inch Wheels, Hi-Ten Steel Frame, Micro Drive 25x9T 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 Sidewalk BMX Bike, Beginner Riders, Boys and Girls, 16-20-inch Wheels, Hi-Ten Steel Frame, Micro Drive BMX Gearing

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**Shop now:** [https://www.desertcart.jp/products/148013933-mongoose-legion-kids-freestyle-bmx-bike](https://www.desertcart.jp/products/148013933-mongoose-legion-kids-freestyle-bmx-bike)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-09-21*