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Delivered ready to ride in 10 to 14 days.

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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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Delivered before 8pm next business day.

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

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Mongoose Legion L20 BMX Bike Black

$469.00 $399.00   ? You automatically get Club Price when buying online. But there are extra benefits if you join Club 99.
In stock
Only %1 left

PAYMENT OPTIONS

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Product Limit $30 - $2,000 $30 - $3000 $350 - $1,000 Up to $8,000
Minimum Purchase $30 $50 $350 $1,000
Interest Free Period Always interest free Always interest free Always interest free Up to 12 months interest free*
Set up Fee No sign-up or late fees No sign-up or monthly account fees No set-up fee A one-off establishment fee may apply
Minimum Repayments Four equal interest free payments Four instalments due every 2 weeks $40/month From $40/month or 3% of the outstanding balance (whichever is greater)*
Payment Frequency Fortnightly Fortnightly Weekly, fortnightly and monthly Set your schedule to weekly, fortnightly or monthly
Monthly Account Fee No account fee No account fee $9.95/month (waived if your statement balance is zero) $9.95/month (waived if nothing owing)
Late Fee No late fees Learn more about Afterpay late fees Click here Learn more about Zip Pay late fees Click here Learn more about Zip Pay late fees Click here
More Information More information More information More information More information
Request a Price Beat

Up to 12 months interest free

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

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.

The Mongoose Legion L20 BMX Bike is designed for riders ready to take their BMX skills to the next level. With a robust Hi-Ten steel frame and BMX freestyle geometry, this bike provides stability and maneuverability essential for performing tricks and jumps. The 3-piece tubular chromoly crankset ensures strength, while the U-brake system offers reliable stopping power. Lightweight aluminum rims and 20" x 2.35" tires enhance agility, making the Legion L20 an excellent choice for both new and experienced riders seeking thrills in the BMX arena.

Mongoose Legion L20 BMX Bike

  • 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

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.

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.

More Information
SKU Mongoose25LegionL20Black
Season 2025
Sizing SKUs 20inch: MGM41463U20OS
Click & Collect Yes
Colour Black
Frame Hi-Ten steel, BMX freestyle geometry
Frame Material Steel
Fork Hi-Ten steel
Rear Gears Single Speed
Crankset 3-piece, tubular chromoly, 25T steel chainring
Pedals Mongoose, nylon
Chain KMC S1
Brakes U-brake, aluminum
Cassette Single-speed, 9T cassette driver
Tyres 20 in x 2.35 in, wire bead
Rims Aluminum single wall, 32 mm ID, 36H
Hubs Steel
Spokes 14G, steel, black
Bottom Bracket American loose ball, 8-spline spindle
Handlebar 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
Saddle Mongoose, steel rails
Seatpost Steel, 250 mm, 25.4 mm

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

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