Mongoose Legion L80 BMX Bike Blue (2021)
Up to 12 months interest free

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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, due to challenges in the product supply chain, bike specifications are subject to change without notice. Specifications listed below may not match exactly as shown in the photo.
The Mongoose Legion L80 BMX bike is a rad BMX bike for riders of any age or ability that are after a totally dialled freestyle machine. The L80 is an extremely capable BMX bike which is ideally suited to all riders who want to step up their game. The tough chromoly frame and Hi-Ten steel fork is built with modern BMX geometry for the ultimate riding experience. The L80 is equipped with 3 piece tubular 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. You'll be rolling on 20x2.3" tyres and aluminium single wall 36H rims for a smooth ride. The Mongoose Legion L80 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
- Mongoose® chromoly main triangle frame; Hi-Ten steel fork; mid BB
- 3-piece chromoly tubular crank; 8-spline spindle
- Aluminum single wall 36H rims; 2.3” tyres
SKU | MGM41301U20OS |
---|---|
Season | 2021 |
Size | 20inch |
Click & Collect | Yes |
Wheel Size | 20" |
Frame Material | Steel |
Fork Material | Steel |
Brake Type | Rim Brake |
Bottom Bracket | American loose ball |
Brakes | Alloy U-Brake |
Brake Levers | Alloy |
Crankset | CrMo Tubular 3-piece, 25T steel chainring |
Fork | Hi-Ten steel |
Frame | CrMo 4130 |
Grips | Mongoose MushXL, 160 mm |
Handlebar | Mongoose, Hi-Ten steel, 29" width, 9" rise |
Headset | Threadless, 1-1/8" external, cartridgebearing |
Hubs | F: Steel, ball bearing, 3/8 in axle, 36H R: Steel, ball bearing, 3/8 in axle 36H |
Pedals | Mongoose, nylon |
Rims | Aluminum single wall, 29 mm ID, 36H |
Saddle | Mongoose Pivotal |
Seatpost | Pivotal, 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 |
Kids Bike Sizing | 20 Inch |
20" Freestyle BMX Sizing Chart
Top Tube
Top Tube
Top Tube
Top Tube

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) | 527.0 | CS Chain Stay Length (mm) | 348.0 | HTA Head Tube Angle (°) | 75.0 | STA Seat Tube Angle (°) | 71.0 | HT Head Tube (mm) | 120.0 | S Stack (mm) | - | WB Wheel Base (mm) | 922.0 |