---
product_id: 231305067
title: "Mongoose Legion L80 2021 Complete BMX"
brand: "mongoose"
price: "€ 115.94"
currency: EUR
in_stock: true
url: https://www.desertcart.ie/products/231305067-mongoose-legion-l80-2021-complete-bmx
store_origin: IE
region: Ireland
---

# 4130 Chromoly frame - ultimate strength 3-piece chromoly cranks - pro-grade power 20" wheels - agile & responsive Mongoose Legion L80 2021 Complete BMX

**Brand:** mongoose
**Price:** € 115.94
**Availability:** ✅ In Stock

## Summary

> 🚀 Own the streets with the Mongoose Legion L80 – where durability meets daredevil style!

## Quick Answers

- **What is this?** Mongoose Legion L80 2021 Complete BMX by mongoose
- **How much does it cost?** € 115.94 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/231305067-mongoose-legion-l80-2021-complete-bmx)

## 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

- • **Race-Ready Geometry:** Optimized 75° headtube and 71° seat tube angles for aggressive BMX trail and street riding.
- • **Power Meets Efficiency:** 3-piece tubular chromoly cranks combined with a sealed rear cassette hub maximize pedaling power and reliability.
- • **Complete Setup, Ready to Roll:** Includes U-brake aluminum system, Mongoose pivotal seat, and nylon pedals for immediate pro-level performance.
- • **Precision Control on Every Ride:** 20" wheels paired with aluminum single-wall rims ensure nimble handling and smooth landings.
- • **Built to Last, Designed to Perform:** 4130 Chromoly front triangle delivers unmatched durability and lightweight agility for serious riders.

## Overview

The Mongoose Legion L80 2021 Complete BMX is a high-performance BMX bike featuring a robust 4130 Chromoly front triangle frame, 20" wheels with aluminum rims, and 3-piece tubular chromoly cranks. Designed for advanced riders, it offers race-inspired geometry and sealed bearing hubs for smooth, reliable rides. Equipped with a U-brake aluminum braking system and premium Mongoose components, this bike is built for trail and street mastery, delivering pro-level durability and control.

## Description

Mongoose Legion L80 2022 20" Complete BMX Features:  Full Size 20" Complete BMX Frame Material: 4130 Chromoly Front Triangle Wheel Size: 20" Top Tube Length: 20.75" Chain Stay Length: 13.7" Headtube Angle: 75degrees Seat Tube Angle: 71degrees Forks: Hi-Ten Steel Bars: Mongoose, Hi-Ten Steel, 29" Width, 9" Rise Stem: Mongoose, Threadless Top Load, 50 mm Headset: Threadless, Integrated 1-1/8", Cartridge Bearing Brake Mounts: Welded Brakes: U-Brake, Aluminium Front Hub: Aluminuim, Ball Bearing, 3/8" Axle, 36H Front Rim: Aluminum Single Wall, 29 mm ID, 36H Rear Hub: Aluminum, Sealed-Bearing Cassette, 14 mm Axle, 36H Rear Rim: Aluminum Single Wall, 29 mm ID, 36H Tyres: 20" X 2.3", Wire Bead Sprocket: 25T Steel Chainring Cranks: 3-Piece, Tubular Chromoly BB: Sealed Mid Pedals: Mongoose, Nylon Seat: Mongoose Pivotal Gearing: 25/9 Comes With Front Brake Attached  Geometry:  See Images  With a chromoly front riangle, 3 piece chromoly tubular cranks and sealed rear cassette hub, the L80 is well equipped for any style of riding. Please note that due to an industry-wide shortage of component parts, specification is subject to change. Please note that these will not be inferior parts but on occasion the manufacturer may differ.Important Note: Our bikes require some assembly on delivery. See our Warranty Page for more details.

## Features

- Frame Material: 4130 Chromoly - Top Tube Length: 20.75"
- Wheel Size: 20"
- Forks: Hi Ten Steel
- Bars: Mongoose, 4130 Chromoly, 29" Width, 9" Rise
- Brake Mounts: Welded - Brakes: U-Brake, Aluminium

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Age range | Adult |
| Bike type | BMX Bike |
| Brake type | rim |
| Color | Tan |
| Style | Modern |
| Frame material | Alloy Steel, Aluminum, Chromoly Steel |
| Number of speeds | 9 |
| Power source | Pedal power |
| Skill level | Advanced |
| Features | Chromoly front triangle and 3-piece chromoly tubular cranks, Sealed rear cassette hub |
| Usage | Trail |
| Suspension | Rigid |
| Wheel size | 20 Inches |
| Included components | U-Brake, Aluminium, Front Hub: Aluminuim, Ball Bearing, 3/8'' Axle, 36H, Rim: Aluminum Single Wall, 29 mm ID, Rear Aluminum, Sealed-Bearing Cassette, 14 Tyres: 20'' X 2.3'', Wire Bead, Sprocket: 25T Steel Chainring, Cranks: 3-Piece, Tubular Chromoly, BB: Sealed Mid, Pedals: Mongoose, Nylon, Seat: Mongoose Pivotal, Gearing: 25/9, Brake Attached |
| Brand | Mongoose |
| Manufacturer | Mongoose |
| Item model number | M41301U10OS |
| Product Dimensions | 62 x 23 x 135 cm; 12 kg |
| ASIN | B088NS783Q |

## Product Details

- **Bike type:** BMX Bike
- **Age range (description):** Adult
- **Brand:** Mongoose
- **Number of speeds:** 9
- **Colour:** Tan
- **Wheel size:** 20 Inches
- **Frame material:** Alloy Steel, Aluminum, Chromoly Steel
- **Suspension type:** Rigid
- **Special feature:** Chromoly front triangle and 3-piece chromoly tubular cranks, Sealed rear cassette hub
- **Included components:** U-Brake, Aluminium, Front Hub: Aluminuim, Ball Bearing, 3/8'' Axle, 36H, Rim: Aluminum Single Wall, 29 mm ID, Rear Aluminum, Sealed-Bearing Cassette, 14 Tyres: 20'' X 2.3'', Wire Bead, Sprocket: 25T Steel Chainring, Cranks: 3-Piece, Tubular Chromoly, BB: Sealed Mid, Pedals: Mongoose, Nylon, Seat: Mongoose Pivotal, Gearing: 25/9, Brake Attached

## Images

![Mongoose Legion L80 2021 Complete BMX - Image 1](https://m.media-amazon.com/images/I/81kPB4i3TYL.jpg)
![Mongoose Legion L80 2021 Complete BMX - Image 2](https://m.media-amazon.com/images/I/71eQ6Nfr3OL.jpg)
![Mongoose Legion L80 2021 Complete BMX - Image 3](https://m.media-amazon.com/images/I/61sV06JeboL.jpg)
![Mongoose Legion L80 2021 Complete BMX - Image 4](https://m.media-amazon.com/images/I/71qzcGPEdOL.jpg)
![Mongoose Legion L80 2021 Complete BMX - Image 5](https://m.media-amazon.com/images/I/71jpZDZPA-L.jpg)

## Questions & Answers

**Q: how much does the l500 weigh? bike only not the packaging.**
A: I weighed my L500 on 2 scales.  26 pounds in a spring scale and 25.78 on a digital scale.  Stock with the plastic chain guard removed.

**Q: When will this bike be available again for $500? Whats going on?**
A: its a old style bike , not sure if its in current production.  Seems they are selling old new stock . I paid 199 for my sons month ago.

**Q: How much does the L500 weigh?**
A: I weighed my L500 on 2 scales. 26 pounds on a spring scale and 25.78 on a digital scale. Stock with the plastic chain guard removed.

**Q: Hi I need the bike to be packed for travel, is it packaged so I can check it into cargo on a flight? Anyone know the dimensions of the package?**
A: The box dimensions for the Legion are:  48.425x9.055x23.622.  Thanks, Jen

## Frequently Bought Together

- Mongoose Legion Freestyle BMX Bike for Advanced-Level or Professional Riders, Adult Men Women, 4130 Chromoly Frame, and 20-Inch Wheels
- 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 Ireland*
*Store origin: IE*
*Last updated: 2026-02-17*