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Mongoose Legion L20 BMX Bike Blue (2020)

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Features

Perfect Ride Guarantee

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

Free Bike Build

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

First Free Service

First Free Service
Every bike come with a complimentary free service and safety check.

The Mongoose Legion L20 BMX bike is a rad BMX bike for riders of any age or ability. The L20 is an extremely capable BMX bike which is ideally suited to entry-level riders who want to step up their game. The tough Hi-Ten steel frame and fork is built with modern BMX geometry for the ultimate riding experience. The L20 is built with 3 piece chromoly cranks which are reliable for the best ride every single time. While the aluminium U-Brake gives you the control that you need in the skate park or streets. The Mongoose Legion L20 BMX bike offers some awesome spec at a great price which makes it the perfect way start out on a full size 20" BMX bike.

Features

  • Frame: Hi-Ten steel, BMX freestyle geometry
  • Crank: 3-piece, tubular chromoly, 25T steel chainring
  • Tyres: 20 in x 2.3 in, wire bead
  • Rims: Aluminum single wall, 24 mm ID, 36H
More Information
SKU MGM41800U10OS
Season 2020
Size 20inch
Wheel Size 20"
Frame Material Steel
Fork Material Steel
Chainset Type Single
Brake Type U-Brake
Bottom Bracket American loose ball, 8-spline spindle
Brakes Rear Alloy U-Brake
Cassette Single-speed, 9T cassette driver
Chain KMC S1
Crankset 3-piece, tubular chromoly, 25T steel chainring
Fork Hi-Ten steel
Frame Hi-Ten steel, BMX freestyle geometry
Grips Mongoose Mush, 145 mm
Handlebar Mongoose, Hi-Ten steel, 28 in width, 8 in rise
Headset Threadless, 1-1/8" external, retainer bearing
Hubs Steel, ball bearing, 3/8 in axle, 36H R: Steel, sealed-bearing cassette, 14 mm axle, 36H
Pedals Mongoose, nylon
Rims Aluminum single wall, 24 mm ID, 36H
Saddle Mongoose, steel rails
Seatpost Steel, 250 mm, 25.4 mm
Stem Mongoose, threadless top load, 50 mm
Spokes 14G, steel, black
Tyres 20 in x 2.3 in, wire bead
Speeds ## x ##
Kids Bike Sizing 20 Inch
Gender Mens, Unisex

About Mongoose Bicycles

Mongoose Bikes was born in California in the 1970s and was at the core of the early days of BMX. In the late 80s Mongoose was again at the forefront of the new mountain bike scene in the US, and was a pioneer of the dual-suspension mountain bike in the early 90s. 40 years on and Mongoose continues to dominate the bike industry with a range of BMX, mountain, recreational and kids bikes transporting riders all across the world.

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View all BMX Bikes

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

This is only an estimate, and every new bike comes with a free professional bike fit when you click & collect in store, plus all bikes have a 30 day Perfect Ride Guarantee.