---
product_id: 148725774
title: "Legion Freestyle BMX Bike for Advanced-Level or Professional Riders, Adult Men Women, 4130 Chromoly Frame, and 20-Inch Wheels"
brand: "mongoose"
price: "728270CFA"
currency: XOF
in_stock: true
reviews_count: 8
url: https://www.desertcart.sn/products/148725774-legion-freestyle-bmx-bike-for-advanced-level-or-professional-riders
store_origin: SN
region: Senegal
---

# 4130 Chromoly frame - pro-grade strength 20x2.3” wide tires on 36H aluminum rims - grip & stability 175mm tubular chromoly cranks - durable drivetrain Legion Freestyle BMX Bike for Advanced-Level or Professional Riders, Adult Men Women, 4130 Chromoly Frame, and 20-Inch Wheels

**Brand:** mongoose
**Price:** 728270CFA
**Availability:** ✅ In Stock

## Summary

> 🔥 Ride the Legend, Own the Park 🚲

## Quick Answers

- **What is this?** 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?** 728270CFA with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/148725774-legion-freestyle-bmx-bike-for-advanced-level-or-professional-riders)

## 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

- • **Optimized 20-Inch Wheelset:** Wide 2.3” tires on robust aluminum rims deliver superior traction and shock absorption for every landing.
- • **Performance-Tuned Drivetrain:** 175mm 3-piece tubular chromoly cranks paired with a sealed mid bottom bracket ensure smooth, reliable power transfer.
- • **Pro-Grade 4130 Chromoly Frame:** Engineered for unmatched durability and strength to conquer parks, streets, and dirt trails with confidence.
- • **Precision Control with Aluminum U-Brakes:** Responsive braking system designed for sharp speed modulation and safety during high-impact tricks.
- • **Tailored Fit for Riders 5’6” to 6’0”:** Perfectly sized 20.75” top tube and 9” rise handlebars for ergonomic control and standout style at the park.

## Overview

The Mongoose Legion L80 is a professional-grade freestyle BMX bike built with a 4130 chromoly steel frame and fork, designed for advanced riders between 5’6” and 6’0”. Featuring a 20-inch wheelset with wide 2.3” tires on durable aluminum rims, a precision aluminum U-brake system, and a performance drivetrain with 175mm tubular chromoly cranks, this bike delivers strength, control, and reliability for park, street, and dirt riding. Backed by a 5-year frame warranty and 1-year parts warranty, it’s a solid choice for riders seeking pro-level quality and style without compromise.

## Description

For 45 years, Mongoose has been in the dirt, down the trails, and on the ramps. With the Legion Series, Mongoose offers a full line of freestyle BMX bikes for riders of all ages and ability levels. The Legion L80 was designed to be a fully park, street and dirt worthy BMX bike. The Legion L80 frame features a professional-grade 4130 chromoly front triangle (20.75” top tube), removable brake mounts, mid BB shell, and removable break mounts. The L80 Hi-Ten steel 9” rise handlebar and 50mm stem are designed for precision riding, while the wide aluminum single wall 36H rims and 2.3” BMX tires offer grip and durability when landing a trick. The 25x9T gearing with 3-piece tubular chromoly 175 mm hollow spindle cranks and mid sealed bottom bracket offer a clean, reliable drivetrains. An aluminum U-brake with aluminum brake levers provide speed control, while the Hi-Ten steel BMX fork with 1-1/8" threadless steerer and taper leg helps maximize performance. This bike ships ready to be assembled and comes with a 5-year limited warranty on the frame and a 1-year limited warranty on parts.

Review: Good bike for the money , pro quality, novice riders bike. - Great bike for the money! If you are a novice rider and want pro quality at a good price this could work for you , a very sturdy chromoly frame fork and bars with some pretty good parts, double wall rims and a free coaster rear hub, strong 2 piece crankset with the normal 25t crank sprocket and a 9tooth rear free coaster hub, strong half link nickel plated chain does the job. Only problem I see with this bike is it is a little bit too heavy to be used professionally. If you are a bigger guy or gal who wants a professional grade bike that is strong and has good quality parts buy this bike it’s a great value. I feel like it looks really good too. Mongoose built this for strength. Not a Walmart Mongoose for sure.
Review: Solid deal if catching it when the price is right. - This review is coming from someone who has riden bmx for over 20 years, and has worked in or been a part of the bmx industry for over a 15 years now. So I know a a few things when it comes to high end, low end and everything in between. With that out of that way, let me say this, the L100 has a lot of good going for it. If managing to catch it for under $400 you can't go wrong. The full 4130 chromoly frame fork and bars is a huge step in the right direction and an excellent starting foundation if wanting to upgrade the bike in the future. The sealed rear wheel, mid bottom bracket, and internal headset are also nice, but I'll touch on those in a bit. The frame accommodates wide tires, I've pictured a 2.4" eclat fireball in the rear. The forks also have ample space for large tires as well. Stock pivotal seat is pretty comfy. Brakes feel pretty solid for stock brakes. Now, where the bike does fall short. The front wheel, it's unsealed. At the original asking price, there are other bike companies out there in this price range offering better specs. So I would have liked to see a sealed hub here. Now, the rims on these bikes are pinned instead of welded. While not a huge deal when you take in to account who this bike is marketed to, it's still something to make note of. The sprocket suffers from the "mass produced quickly" so it was rather bent causing some tight spots. Usually this is something you can't avoid on complete bikes like this. Stock chain is dainty, so I upgraded to a shadow v2 half link. There was grease on the clamp area of the stem where the bars go. I've never in my life greased that area, and I definitely recommend anyone gets one to check it before slapping the bars on. All in all, I purchased this for my wife to pedal around with me at skateparks so I wasn't expecting to be wowed. However I wasn't let down by the quality. Mongoose may be known as a department store brand, but they do have quite the bmx heritage. I think if you can score this bike on a deep discount, or sale and swap out the wheels, chain, perhaps stem and cranks at some point. You'll have a solid bike. Straight out of the bike, it's great for beginnera and intermediate or that old guy getting back in to it after years off the bike. Also, one thing to note, some of reviews are of people who bought a bmx bike and don't really understand what they bought. So for those reviews noting the chain guard or a kick stand. This isn't meant for a kickstand. And the chain guard is there because it has to be, you really aren't expected to keep it on the bike.

## Features

- L80 is a fully park, street or dirt worthy freestyle BMX bike, Hi-Ten steel 9 inch rise handlebar that will make you stand out at the bike park, Suggested rider height is 5’6” - 6'0".
- Ultra-durable Mongoose 4130 Chromoly front triangle, along with removable brake mounts and a mid BB shell, with a top tube length of 20.75 inches
- Drivetrain features 175 mm 3-piece tubular chromoly hollow spindle cranks with a 25T steel chainring and mid sealed bearing bottom bracket.
- Wheelset features 20” x 2.3” tires mounted on wide 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 4130 chromoly handlebar and fork are joined by a 50 mm stem and threadless sealed integrated headset for maximum steering performance.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07W5KNZZV |
| Additional Features | Aluminum Frame, BMX, freestyle |
| Age Range (Description) | Big Kid |
| Age Range Description | Big Kid |
| Best Sellers Rank | #107,030 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #5 in BMX Bikes |
| Bicycle Drivetrain Type | Single-speed |
| Bike Type | BMX Bike |
| Brake Style | U Brake |
| Brand | Mongoose |
| Brand Name | Mongoose |
| Color | Red |
| Customer Reviews | 4.3 out of 5 stars 769 Reviews |
| Frame Material Type | Chromoly Steel |
| Global Trade Identification Number | 00038675187092 |
| Included Components | Mongoose Legion L80 Freestyle BMX Bike |
| Is Assembly Required | Yes |
| Is Autographed | No |
| Item Height | 124 centimeters |
| Item Type Name | BMX Bike |
| Item Weight | 26.5 Pounds |
| Manufacturer | Pacific Cycle, Inc. |
| Minimum User Height | 66 Inches |
| Model Name | Legion BMX |
| Model Number | M41300U10OS-PC |
| Model Year | 2020 |
| Number Of Speeds | 1 |
| Number of Handles | 2 |
| Number of Speeds | 1 |
| Power Source | manual |
| Seat Material | Leather |
| Size | 20-Inch Wheels |
| Specific Uses For Product | Trail |
| Style Name | L80 |
| Suspension Type | Rigid |
| UPC | 038675187092 |
| 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

- **Bike Type:** BMX Bike
- **Age Range (Description):** Big Kid
- **Brand:** Mongoose
- **Number of Speeds:** 1
- **Color:** Red
- **Wheel Size:** 20 Inches
- **Frame Material:** Chromoly Steel
- **Suspension Type:** Rigid
- **Special Feature:** Aluminum Frame, BMX, freestyle
- **Included Components:** Mongoose Legion L80 Freestyle BMX Bike

## Images

![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/81k-W7fddZL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good bike for the money , pro quality, novice riders bike.
*by P***Z on July 29, 2025*

Great bike for the money! If you are a novice rider and want pro quality at a good price this could work for you , a very sturdy chromoly frame fork and bars with some pretty good parts, double wall rims and a free coaster rear hub, strong 2 piece crankset with the normal 25t crank sprocket and a 9tooth rear free coaster hub, strong half link nickel plated chain does the job. Only problem I see with this bike is it is a little bit too heavy to be used professionally. If you are a bigger guy or gal who wants a professional grade bike that is strong and has good quality parts buy this bike it’s a great value. I feel like it looks really good too. Mongoose built this for strength. Not a Walmart Mongoose for sure.

### ⭐⭐⭐⭐⭐ Solid deal if catching it when the price is right.
*by K***I on February 24, 2023*

This review is coming from someone who has riden bmx for over 20 years, and has worked in or been a part of the bmx industry for over a 15 years now. So I know a a few things when it comes to high end, low end and everything in between. With that out of that way, let me say this, the L100 has a lot of good going for it. If managing to catch it for under $400 you can't go wrong. The full 4130 chromoly frame fork and bars is a huge step in the right direction and an excellent starting foundation if wanting to upgrade the bike in the future. The sealed rear wheel, mid bottom bracket, and internal headset are also nice, but I'll touch on those in a bit. The frame accommodates wide tires, I've pictured a 2.4" eclat fireball in the rear. The forks also have ample space for large tires as well. Stock pivotal seat is pretty comfy. Brakes feel pretty solid for stock brakes. Now, where the bike does fall short. The front wheel, it's unsealed. At the original asking price, there are other bike companies out there in this price range offering better specs. So I would have liked to see a sealed hub here. Now, the rims on these bikes are pinned instead of welded. While not a huge deal when you take in to account who this bike is marketed to, it's still something to make note of. The sprocket suffers from the "mass produced quickly" so it was rather bent causing some tight spots. Usually this is something you can't avoid on complete bikes like this. Stock chain is dainty, so I upgraded to a shadow v2 half link. There was grease on the clamp area of the stem where the bars go. I've never in my life greased that area, and I definitely recommend anyone gets one to check it before slapping the bars on. All in all, I purchased this for my wife to pedal around with me at skateparks so I wasn't expecting to be wowed. However I wasn't let down by the quality. Mongoose may be known as a department store brand, but they do have quite the bmx heritage. I think if you can score this bike on a deep discount, or sale and swap out the wheels, chain, perhaps stem and cranks at some point. You'll have a solid bike. Straight out of the bike, it's great for beginnera and intermediate or that old guy getting back in to it after years off the bike. Also, one thing to note, some of reviews are of people who bought a bmx bike and don't really understand what they bought. So for those reviews noting the chain guard or a kick stand. This isn't meant for a kickstand. And the chain guard is there because it has to be, you really aren't expected to keep it on the bike.

### ⭐⭐⭐⭐ best quality at this price range
*by B***N on December 17, 2019*

Pros: best config you can get at this price range. Chromoly frame, fork and handlebar, sealed bearing for front and rear hub, freecoaster rear hub. (other brand like WTP, fly kink may cost you double for this config). Easy to assembly (just install the handlebar, padel, front wheel and seat). It come with a U brake and is suitable to install Gyro, but I took off the brake cos I run brakeless at park. Cons: Made in China by pacific bicycle, and 21 inch frame (suitable for 5'11 or above I guess).

## Frequently Bought Together

- 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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- 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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*Product available on Desertcart Senegal*
*Store origin: SN*
*Last updated: 2026-02-17*