- Frame: 4130 Chromoly, Removable Brake Mounts, Integrated Headset and Mid BB Shell
- Fork: 4130 Chromoly, 1-1/8" Threadless Steerer, Taper Leg
- Crank: 3-Piece Tubular Cromo, 175mm, 25T Alloy Chainring
- Bottom Bracket: Mid Sealed Bearing, 8-Spline Axle
- Cog Set: 9T Cassette Driver
- Chain: KMC Z410
- Wheel Size: 20"
- Rims: Alloy Double-Wall 36H
- Front Hub: Alloy, 3/8" Female Axle with Bolt, 36H
- Pedals: Plastic Body with 9/16" Axle
- Handlebar: Mongoose Chromoly 8.75"
- Stem: Mongoose Top Load 50mm Ext.
- Headset: Threadless 1 1/8" Integrated
- Brake Levers: Alloy
- Spokes: 14G
- Saddle: Mongoose Pivotal
- Seat Post: Steel, 25.4, Pivotal
- Grips: Mongoose MushXL, 160mm
- Length: 47.638"
- Width: 8.661"
- Height: 22.835"
- Weight: 12.44kg
Ranging from the LXS to the L100, the Legion series of bikes offers everything a BMX rider could need from your first true BMX bike in the L18 to a fully park, street and dirt worth machine in the L100. Mongoose has infused over 40 years of experience along with feedback and insights from the pro athletes to develop the best line of Legion bikes yet.