---
product_id: 411495640
title: "Mongoose Legion Freestyle BMX Bike for Advanced-Level or Professional Riders, Adult Men Women, 4130 Chromoly Frame, and 20-Inch Wheels"
brand: "mongoose"
price: "¥63395"
currency: JPY
in_stock: false
reviews_count: 5
url: https://www.desertcart.jp/products/411495640-mongoose-legion-freestyle-bmx-bike-for-advanced-level-or-professional
store_origin: JP
region: Japan
---

# 20" x 2.3" tires on 36H aluminum rims - versatile multi-terrain grip 175mm tubular chromoly cranks - precision power transfer 4130 Chromoly Frame - pro-grade durability Mongoose Legion Freestyle BMX Bike for Advanced-Level or Professional Riders, Adult Men Women, 4130 Chromoly Frame, and 20-Inch Wheels

**Brand:** mongoose
**Price:** ¥63395
**Availability:** ❌ Out of Stock

## Summary

> 🚀 Own the ramp, street, and dirt — the Mongoose Legion L40 is your freestyle game-changer!

## Quick Answers

- **What is this?** Mongoose Legion Freestyle BMX Bike for Advanced-Level or Professional Riders, Adult Men Women, 4130 Chromoly Frame, and 20-Inch Wheels by mongoose
- **How much does it cost?** ¥63395 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/411495640-mongoose-legion-freestyle-bmx-bike-for-advanced-level-or-professional)

## 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

- • **Precision Drivetrain:** Experience smooth, powerful pedaling with 175mm tubular chromoly cranks and a sealed bearing bottom bracket.
- • **Pro-Grade Chromoly Frame:** Ride with confidence on a tough 4130 chromoly frame built for advanced freestyle performance.
- • **Versatile 20-Inch Wheels:** Conquer street, park, or dirt with 20" x 2.3" tires mounted on durable 36H aluminum rims for ultimate traction.
- • **Responsive U-Brake System:** Maintain precise speed control with aluminum U-brakes and ergonomic brake levers designed for quick stops.
- • **Tailored for Intermediate Riders:** Optimized geometry and components for riders 5’0"-5’6" ready to push their freestyle skills to the next level.

## Overview

The Mongoose Legion L40 is a high-performance freestyle BMX bike designed for intermediate to professional riders. Featuring a durable 4130 chromoly frame, precision 175mm tubular cranks, and versatile 20" x 2.3" tires on aluminum rims, it delivers reliable performance across park, street, and dirt terrains. Equipped with responsive U-brakes and tailored geometry for riders between 5’0" and 5’6", this bike is built to elevate your tricks and stunts with confidence.

## Description

Buy Mongoose 20" Legion L40 White online on desertcart.ae at best prices. ✓ Fast and free shipping ✓ free returns ✓ cash on delivery available on eligible purchase.

Review: Love it! - Perfect bike, solid and easy to assemble
Review: cuidar detalles de traslado - algo que no me gusto: un detalle en cuanto al traslado o del transporte en el cual hicieron la entrega , se maltrato una pieza al grado de romper la caja de una parte y con el movimiento se fue raspando creo esos detalles podrían ser de mas cuidado para que el producto llegue sin ningún detalle, en cuanto al producto estuvo excelente realmente de muy buena calidad, en serio que si gustó

## Features

- L40 is a fully park, street or dirt-worthy freestyle BMX bike that offers everything a new rider could need to bust their first tricks on their local ramp! Suggested rider height is 5’0”-5’6”
- Durable bike, built with a Hi-Ten steel frame, removable brake mounts, and a mid BB shell, and has a top tube length of 20.5"
- Equipped with a high-performance drivetrain that includes 175 mm 3-piece tubular chromoly hollow spindle cranks, a 25T steel chainring, and a mid-sealed bearing bottom bracket
- Wheelset featuring 20" x 2.3" tires mounted on 36H aluminum single-wall rims, along with a 3/8" female axle front hub and a 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 50 mm stem and threadless sealed integrated headset for maximum steering performance

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07W6L53Q7 |
| Additional Features | freestyle |
| Age Range Description | Big Kid |
| Age range (description) | Big Kid |
| Best Sellers Rank | #55,304 in Sporting Goods ( See Top 100 in Sporting Goods ) #26 in BMX Bikes |
| Bicycle Drivetrain Type | chain drive |
| Bicycle Gear Shifter Type | Twist Grip |
| Bike Type | BMX Bike |
| Bike type | BMX Bike |
| Brake Style | U Brake |
| Brand | Mongoose |
| Brand Name | Mongoose |
| Color | White |
| Colour | White |
| Customer Reviews | 4.3 out of 5 stars 269 Reviews |
| Derailleur Configuration | Rear |
| Frame Material Type | High Tensile Steel |
| Gear Type | Single-speed |
| Global Trade Identification Number | 00038675187139 |
| Included Components | Mongoose Legion L40 Freestyle BMX Bike |
| Intended Riding Terrain | Multi-Terrain |
| Is Assembly Required | Yes |
| Is Autographed | No |
| Item Type Name | BMX Freestyle Bike |
| Item Weight | 12 Kilograms |
| Manufacturer | Mongoose |
| Minimum User Height | 60 Inches |
| Model Name | Legion Intermediate |
| Model Number | M41500U10OS-PC |
| Model Year | 2020 |
| Number Of Speeds | 1 |
| Number of Handles | 1 |
| Number of speeds | 1 |
| Power Source | Pedal power |
| Seat Material | Plastic |
| Size | 20" |
| Skill Level | Intermediate |
| Specific Uses For Product | Skate Park, Dirt, Street |
| Style Name | L40 |
| Suspension Type | Rigid |
| Theme | Action Sports |
| UPC | 038675187139 |
| Warranty Type | Limited Warranty |
| Wheel Material | Aluminum |
| Wheel Size | 20 Inches |
| Wheel size | 20 Inches |

## Product Details

- **Age range (description):** Big Kid
- **Bike type:** BMX Bike
- **Brand:** Mongoose
- **Colour:** White
- **Number of speeds:** 1

## Images

![Mongoose Legion Freestyle BMX Bike for Advanced-Level or Professional Riders, Adult Men Women, 4130 Chromoly Frame, and 20-Inch Wheels - Image 1](https://m.media-amazon.com/images/I/71+WKIWcY0L.jpg)
![Mongoose Legion Freestyle BMX Bike for Advanced-Level or Professional Riders, Adult Men Women, 4130 Chromoly Frame, and 20-Inch Wheels - Image 2](https://m.media-amazon.com/images/I/71hb+NWEDsL.jpg)
![Mongoose Legion Freestyle BMX Bike for Advanced-Level or Professional Riders, Adult Men Women, 4130 Chromoly Frame, and 20-Inch Wheels - Image 3](https://m.media-amazon.com/images/I/61koSHK-HnL.jpg)
![Mongoose Legion Freestyle BMX Bike for Advanced-Level or Professional Riders, Adult Men Women, 4130 Chromoly Frame, and 20-Inch Wheels - Image 4](https://m.media-amazon.com/images/I/71btcknKE8L.jpg)
![Mongoose Legion Freestyle BMX Bike for Advanced-Level or Professional Riders, Adult Men Women, 4130 Chromoly Frame, and 20-Inch Wheels - Image 5](https://m.media-amazon.com/images/I/71MGS5uIW5L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Love it!
*by A***R on 20 October 2020*

Perfect bike, solid and easy to assemble

### ⭐⭐⭐⭐⭐ cuidar detalles de traslado
*by I***R on 1 November 2021*

algo que no me gusto: un detalle en cuanto al traslado o del transporte en el cual hicieron la entrega , se maltrato una pieza al grado de romper la caja de una parte y con el movimiento se fue raspando creo esos detalles podrían ser de mas cuidado para que el producto llegue sin ningún detalle, en cuanto al producto estuvo excelente realmente de muy buena calidad, en serio que si gustó

### ⭐⭐⭐⭐⭐ Excelente bici para que un niño de 12 años empiece en BMX.
*by J***A on 23 March 2020*

Llego a tiempo. Muy fácil de armar. Excelente bici para que un niño empiece en BMX. Por el precio es mucho mejor que cualquier bicicleta que compres en tiendas de autoservicio.

## 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 Freestyle BMX Bike for Advanced-Level or Professional Riders, Adult Men Women, 4130 Chromoly Frame, and 20-Inch Wheels

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---

*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-10-30*