Mongoose Legion L20 BMX Bike Black

Brand: Mongoose

SKU: MGM41463U20OS

Other Colours

Blue

Black

Size: 20inch

20inch

$449.00 Full price

$449.00

Club price

$469.00 Full price

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Steel Frame/ Steel Fork

20" Wheel Size

Rim Brake

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Product Details

Description

The Mongoose Legion L20 BMX Bike is crafted for riders aiming to elevate their BMX skills. It features a durable Hi-Ten steel frame and BMX freestyle geometry, providing the stability and maneuverability needed for tricks and jumps. The bike includes a 3-piece tubular chromoly crankset for added strength and a U-brake system for dependable stopping power. With lightweight aluminum rims and 20" x 2.35" tires, the Legion L20 offers enhanced agility, making it ideal for both beginners and seasoned riders seeking excitement in the BMX arena.

Key Features

Durable Hi-Ten steel frame construction
3-piece tubular chromoly crankset
BMX freestyle geometry for enhanced control
Reliable U-brake system for effective stopping
Lightweight aluminum rims for agility

Specifications

Product Overview

Product

Mongoose Legion L20 BMX Bike Black

Brand

Mongoose

Parent SKU

Mongoose25LegionL20Black

SKU

Mongoose25LegionL20Black

Size SKUs

20inch: MGM41463U20OS

Matrix Barcodes

20inch: 0038675272569

Year Model

2025

Product Features

Frame Material

Steel

Colour

Black

Wheel Size

20"

Brake Type

Rim Brake

Fork Material

Steel

Build

Frame

Hi-Ten steel, BMX freestyle geometry

Fork

Hi-Ten steel

Handlebars

Mongoose, Hi-Ten steel, 28.25 in width, 8.25 in rise

Headset

Threadless, 1-1/8" external, retainer bearing

Grips

Mongoose Mush, 145 mm

Stem

Mongoose, threadless top load, 45 mm

Bottom Bracket

American loose ball, 8-spline spindle

Pedals

Mongoose, nylon

Saddle

Mongoose, steel rails

Seat Post

Steel, 250 mm, 25.4 mm

Wheels

Wheel Size

20"

Rims

Aluminum single wall, 32 mm ID, 36H

Hubs

Steel

Tyres

20 in x 2.35 in, wire bead

Spokes

14G, steel, black

Groupset

Crankset

3-piece, tubular chromoly, 25T steel chainring

Chain

KMC S1

Brakes

U-brake, aluminum

Cassette

Single Speed

Frequently Asked Questions

What is the Mongoose Legion L20 used for?

The Mongoose Legion L20 is used for BMX freestyle riding, allowing riders to practice tricks and jumps in various environments.

Why choose the Mongoose Legion L20?

Choose the Mongoose Legion L20 for its durable construction and freestyle geometry, making it suitable for a range of riders. Its reliable components and lightweight design enhance the riding experience.

Who is the Mongoose Legion L20 designed for?

The Mongoose Legion L20 is designed for young riders, typically aged 7 to 11 years old, who are looking to advance their BMX skills. It caters to both beginners and those with some experience in freestyle riding.

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PERFECT RIDE GUARANTEE

If you don't love it, you can swap it, up to 30 days from purchase!* Learn more »

FREE BIKE BUILD

We'll build your bike for free when you click and collect at any 99 Bikes store.

FIRST FREE TUNE-UP

Every bike comes with a complimentary free tune-up and safety check. Learn more »

Built for Performance and Durability

Constructed with a Hi-Ten steel frame, the Mongoose Legion L20 offers exceptional durability for young riders. It can withstand the rigors of freestyle riding, allowing riders to focus on their performance.

Enhanced Control with Freestyle Geometry

The BMX freestyle geometry of the Legion L20 enables better handling during tricks and stunts. Riders can navigate obstacles with confidence, making it ideal for parks and ramps.

Smooth Stopping with U-Brake System

Equipped with an aluminum U-brake, the Mongoose Legion L20 ensures reliable stopping power. This feature provides added safety, allowing riders to maintain control while practicing their skills.

20inch

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Legend

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Mongoose Legion L20 BMX Bike Black geometry diagram

Legend

ST Seat Tube
STA Seat Tube Angle
R Reach
TT Top Tube
BD Bottom Bracket Drop
S Stack
CS Chain Stay Length
HT Head Tube
WB Wheel Base
HTA Head Tube Angle
FL Fork Length

Wheel Size

20"

Stack

Reach

Top Tube Length

Seat Tube Length

Seat Tube Angle

Fork Length

Head Tube Length

Head Tube Angle

Handlebar Height

Bottom Bracket Drop

Chainstay Length

Wheelbase

Standover Height

Minimum Seat Height

Maximum Seat Height

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