---
product_id: 148969896
title: "Legion BMX Bike, 16, 18 or 20 Inch Bike for Kids and Adults, Hi-Ten Steel Frame, 25x9T, 36x16T or 40x16T Gearing, Black/Teal, Silver, Orange, Red, Green, Black or Light Blue"
brand: "mongoose"
price: "R11083"
currency: ZAR
in_stock: true
reviews_count: 8
url: https://www.desertcart.co.za/products/148969896-legion-bmx-bike-16-18-or-20-inch-bike-kids
store_origin: ZA
region: South Africa
---

# Hi-Ten Steel Frame - durable & tough Aluminum 20" Wheels - lightweight & sturdy Single-Speed Drivetrain - smooth & reliable Legion BMX Bike, 16, 18 or 20 Inch Bike for Kids and Adults, Hi-Ten Steel Frame, 25x9T, 36x16T or 40x16T Gearing, Black/Teal, Silver, Orange, Red, Green, Black or Light Blue

**Brand:** mongoose
**Price:** R11083
**Availability:** ✅ In Stock

## Summary

> 🚀 Own the streets with the Mongoose Legion — where beginner meets badass!

## Quick Answers

- **What is this?** Legion BMX Bike, 16, 18 or 20 Inch Bike for Kids and Adults, Hi-Ten Steel Frame, 25x9T, 36x16T or 40x16T Gearing, Black/Teal, Silver, Orange, Red, Green, Black or Light Blue by mongoose
- **How much does it cost?** R11083 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/148969896-legion-bmx-bike-16-18-or-20-inch-bike-kids)

## 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 Operator:** Single-speed drivetrain with forged steel crank and sealed bearing cassette for effortless rides.
- • **Built to Last, Ready to Blast:** Hi-Ten steel frame engineered for rugged BMX action and long-lasting durability.
- • **Fits Growing Riders Perfectly:** Available in 16, 18, and 20-inch wheels to match riders from 3'6" up to 6'0" — grow your skills, not your bike.
- • **Light as Air, Strong as Steel:** Aluminum mag wheels with sealed bearings deliver a sleek, responsive ride every time.
- • **Precision Control at Your Fingertips:** Steel U-brakes paired with aluminum/resin levers ensure confident stopping power for tricks and trails.

## Overview

The Mongoose Legion BMX Bike is a beginner-friendly, single-speed BMX designed for kids and young riders between 3'6" and 6'0" tall. Featuring a durable Hi-Ten steel frame, lightweight aluminum 20-inch wheels with sealed bearings, and reliable steel U-brakes, it offers a smooth, controlled ride perfect for freestyle and trail use. Available in multiple wheel sizes and vibrant colors, it combines classic BMX heritage with modern performance, backed by a 5-year frame warranty.

## Description

Unleash the fun with the Mongoose Legion Mag, the perfect BMX bike for kids. With 16, 18 or 20-inch wheels, this kids bike is ideal for riders from less than 3'6"" - 6'0"" tall, offering a thrilling way to build confidence and skills. The hi-ten steel frame is tough enough to handle jumps and turns, while the 25x9T, 36x16T or 40x16T gearing keeps the ride nice and smooth. Aluminum mag wheels with sealed bearings ensure you’re on the coolest bike on the block. Alloy rear U-brakes offer reliable stopping power to help support your next trick or stunt. Young riders can feel like BMX pros. Assembly is easy with a few common household tools and the included instruction guide. At Mongoose, we know our roots – as pioneers in BMX and action sports for over 50 years, we're dedicated to delivering an epic ride every time. Get ready to push the limits.

## Features

- Legion L10 is a great first BMX bikes for beginners with standard 20 Inch wheels, the recommended rider's height is 4'4" to 5'0"
- Durable Hi-Ten steel frame and removable brake mounts with 20” top tube length
- Single speed drivetrain features 170 mm one-piece forged steel crank with a 25T steel chainring and American loose ball bottom bracket
- Wheelset features 20” x 2.25” tires mounted on aluminum single wall 36H rims with 3/8” female axle front hub and 9T cog sealed bearing cassette rear hub
- Steel U-brake and aluminum/resin brake levers provide precision speed control, while the Hi-Ten handlebar and fork are joined by a 48 mm stem and threadless sealed integrated headset for maximum steering performance

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Bike Type | BMX Bike |
| Age Range (Description) | Little Kid |
| Brand | Mongoose |
| Number of Speeds | 1 |
| Color | Black/Teal |
| Wheel Size | 20 Inches |
| Frame Material | High Tensile Steel |
| Suspension Type | Rigid |
| Special Feature | Aluminum Frame, BMX, freestyle |
| Included Components | Mongoose Legion L10 Freestyle BMX Bike |
| Size | 20-Inch Wheels/L10 |
| Brake Style | U Brake |
| Specific Uses For Product | Trail |
| Item Weight | 26.14 Pounds |
| Style | Legion L10 |
| Model Name | Legion Novice |
| Power Source | Pedal power |
| Wheel Material | Aluminum |
| Year | 2020 |
| Warranty Type | Limited |
| Assembly Required | Yes |
| Skill Level | Beginner |
| Global Trade Identification Number | 00038675187191 |
| Minimum User Height | 52 Inches |
| Frame Material | High Tensile Steel |
| UPC | 038675187191 |
| Bicycle Drivetrain Type | single-speed |
| Manufacturer | Pacific Cycle, Inc. |
| Frame Size | 20 Inches |
| Frame Type | Rigid |
| Item Package Dimensions L x W x H | 48.03 x 22.83 x 9.45 inches |
| Package Weight | 16 Kilograms |
| Brand Name | Mongoose |
| Warranty Description | 5-year limited warranty on the frame and a 1-year limited warranty on parts. |
| Material | Other, Steel |
| Suggested Users | unisex-child |
| Number of Items | 1 |
| Part Number | M41900U10OS-PC |

## Product Details

- **Bike Type:** BMX Bike
- **Age Range (Description):** Little Kid
- **Brand:** Mongoose
- **Number of Speeds:** 1
- **Color:** Black/Teal
- **Wheel Size:** 20 Inches
- **Frame Material:** High Tensile Steel
- **Suspension Type:** Rigid
- **Special Feature:** Aluminum Frame, BMX, freestyle
- **Included Components:** Mongoose Legion L10 Freestyle BMX Bike

## Images

![Legion BMX Bike, 16, 18 or 20 Inch Bike for Kids and Adults, Hi-Ten Steel Frame, 25x9T, 36x16T or 40x16T Gearing, Black/Teal, Silver, Orange, Red, Green, Black or Light Blue - Image 1](https://m.media-amazon.com/images/I/7119cL5cjVL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Extremely Easy to Assemble. Bike Looks Amazing. M8x1.25 Tap May be Needed.
*by D***E on December 30, 2020*

The bike from the pictures looked pretty cool. I didn't realize how beautiful this bike would be until it came in the mail. I purchased the Legion Mag in orange for my 8 year old. It was great to see his reaction on Christmas when receiving this bike. He was so excited. I read some other reviews from reviewers who had complaints on the difficulty of assembling the bike and in my opinion the people having trouble assembling the bike must be blatantly ignorant or illiterate. The instructions for assembly are written so a teenager could assemble this bike, with clearly labeled diagrams and more in depth explanations than what is necessary for assembly. The instructions on assembly are excellent and I had almost no trouble assembling the bike without them until it came to adjusting the brakes. I assembled the entire bike without instructions except for the brakes because it is just self explanatory. I was also able to assemble the brakes without any trouble or needing the instructions although I did refer to them for proper adjustment and alignment protocols. The only issue I had when assembling the bike is when I got to the point of attaching the handlebars to the handlebar binder assembly attached to the stem. The four socket cap screws that tighten down on the handlebar binder bracket would not thread easily. I felt as though I would break the screws or destroy the threads if I attempted to tighten them down far enough to grip the handlebars. There was too much paint in the threaded holes and also the tolerances on the machining of the threads was not great. I have included some pictures showing just how much paint was removed from tapping and also chips from burs in the threaded holes from poor tolerance drilling and tapping at the factory. In order to fix this problem I grabbed a tap handle and a M8x1.25 normal thread tap and tapped the holes. I would give this bike a 4.9 out of 5 if I could just because I needed to tap these holes and a tap was not listed as a required tool. I don't think many people will have problems assembling the bike even if they have this issue and need to tap the four holes as these are the only holes that need anything to be screwed into. Honestly if you don't at the very least know how to use a tap and die set you probably shouldn't be assembling a bike as it's not safe to do so if you're not familiar with basic tools. You could wind up hurting your child from pure negligence if you don't know how to use basic hand tools to assemble this bike properly. My suggestion is that you take it to a local bike shop and pay $30-$40 to have them assemble the bike and adjust the brakes if you don't know what you are doing. I assume some people who buy this bike will do just that with the majority of people knowing how basic hand tools work and them being able to assemble it themselves. Overall the bike is amazing, my son loves it, it was extremely easy to assemble, and I recommend you tap the holes on the handlebar binder even if it doesn't need it as it will allow you to make a more secure connection. Please don't listen to people complaining about difficult assembly as it was extremely easy even the detangler brakes something of which I've never seen or dealt with on a bike before. The instructions are very clear on how to hook the brakes up and how to adjust them properly and I was actually surprised how easy it was to assemble the brakes because I was expecting something very difficult based on the reviews but it turns out these brakes are easier to assemble than normal brakes.

### ⭐⭐⭐⭐⭐ Great Purchase!
*by E***. on December 28, 2024*

I had no previous experience with this brand of bikes before this, but bought this and two others as Christmas gifts. Wow!! My kids love these bikes!Well made, easy to assemble, great value. The first day my kids were ready to ride several miles on these bikes. The thicker tires made it easy to go over multiple types of terrain. Everything is just really well made and put together. Super stoked about this purchase and the two others!

### ⭐⭐⭐⭐⭐ Kiddo loves this bike!
*by S***K on June 17, 2025*

NICE bike after training wheels! HEAVY DUTY!

## 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

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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-02-10*