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Delivered ready to ride in 10 to 14 days.

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Select the product you are interested in, click delivery, type in your postcode, and select Bike Delivery. If this is not available there is no available stock nearby.

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Once your order is placed we will be in contact with you within 2 hours to confirm your order.

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Your bike will be built up at your local 99 bikes by one of our expert mechanics and safety checked prior to delivery.

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Your bike is delivered to your door by a 99 Bikes expert who will walk you through your new bike and answer any questions you may have.

Next Business Day Delivery

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Delivered before 8pm next business day.

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About Box Bike Delivery

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Delivered boxed in 2 - 4 weeks

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Your bike will be visually inspected by our mechanics prior to delivery.

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Your bike will be sent boxed through a courier to your delivery address. Authority to leave must be provided.

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Delivered

Your bike will be delivered to your delivery address within 2 - 4 weeks

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Mongoose Legion L40 BMX Bike Black 2021

Out of stock
Request a Price Beat

Up to 12 months interest free

Features

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 come with a complimentary free tune-up and safety check.

Please note that, in order to reduce production and delivery times, bike specifications are subject to change by the manufacturer without notice. Please be aware that these changes might not be reflected on product pages and images.

With the Legion Series, Mongoose offers a full line of freestyle BMX bikes for riders of all ages and ability levels. The Mongoose Legion L40 BMX Bike 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! A combination of lightweight but strong parts means this BMX will stand up to a beating without breaking the bank.

3-PIECE CHROMOLY CRANK

The standard for high-end BMX bikes, 3-piece cranks are stiffer and stronger, meaning you can smash it at the skate park with confidence. Made with Chromoly, these cranks are lightweight while still retaining their strength.

HI-TEN STEEL FRAME, FORK AND BARS

Made with high-tensile steel, this is the perfect bike for those looking for something strong enough to take a beating without breaking the bank.

SEALED BEARING BOTTOM BRACKET

Sealed bearings in the bottom bracket offer reliability and reduced maintenance needs so you can focus on what matters, the riding!

Questions Answered

What is this bike used for?

The Mongoose Legion L40 is a true all-round freestyle machine and is just as at home riding dirt jumps and pump tracks as it as on the street and in the skatepark.

How is this bike different?

This BMX utilises parts normally seen on much more expensive models to ensure it's strong, lightweight and tough enough to take a knock. It has geometry that suits all-round riders riding a variety of terrains.

Who is this BMX designed for?

The Legion is a perfect entry-level Freestyle BMX for riders who want a bike that won't break the bank, but is still extremely lightweight and durable. The top tube is 20.5 inches (521mm) and suggested rider height is 5’0” – 5’6”.

More Information
SKU MGM41501U10OS
Season 2021
Click & Collect Yes
Colour Black
Frame Alloy
Frame Material Alloy
Fork Integrated lightweight rigid 6061 alloy fork with 25.4 straight blades
Fork Material Alloy
Front Gears Single
Rear Gears Single Speed
Crankset 3-piece, tubular chromoly, 25T steel chainring
Chain KMC S1
Brake Type Rim Brake
Brakes Aluminium U-Brake
Wheel Size 20"
Tyres 20 in x 2.3 in, wire bead
Rims Aluminum single wall, 24 mm ID, 36H
Hubs Steel
Sizing 20 Inch

20" Freestyle BMX Sizing Chart

Rider's Height (cm)
140
145
150
155
160
165
170
175
180
185
190
195
19.5-20"
Top Tube
20-20.5"
Top Tube
20.5-21"
Top Tube
21+"
Top Tube

BMX Bike Geometry Diagram

Legend

ST Seat Tube

TT Top Tube

CS Chain Stay Length

HTA Head Tube Angle

STA Seat Tube Angle

BD Bottom Bracket Drop

HT Head Tube

FL Fork Length

R Reach

S Stack

WB Wheel Base

Size

20inch
Wheel Size 20"
Frame Size 20inch
ST Seat Tube (mm) 223.0
TT Top Tube (mm) 521.0
CS Chain Stay Length (mm) 348.0
HTA Head Tube Angle (°) 74.5
STA Seat Tube Angle (°) 71.0
HT Head Tube (mm) 100.0
S Stack (mm) -
WB Wheel Base (mm) 920.0

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