- Frame: Hi-Ten Steel, Mid BB Shell
- Fork: Hi-Ten Steel, 1-1/8" Threadless Steerer, Taper Leg
- Rims: Alloy Single-Wall 36H
- Front Hub: Steel, 3/8" Axle, 36H
- Rear Hub: 36H, 9T Cassette, 14mm Axle, Sealed Bearing, aL Shell
- Spokes: 14G
- Tires: 20 x 2.3"
- Pedals: Plastic Body with 9/16" Axle
- Crank: 3-Piece Tubular Cromo, 175mm, 25T Alloy Chainring
- Bottom Bracket: Mid Sealed Bearings, 8-Spline Axle
- Chain KMC Z410
- Rear Cogs: 9T Cassette Driver
- Handlebar: Mongoose Hi-Ten 8.75"
- Grips: Mongoose MushXL 160mm
- Stem: Mongoose Front Load 48mm Ext.
- Headset: Threadless 1 1/8" External
- Brakes and Brake Levers: Alloy U-Brake
- Saddle: Mongoose Unifier
- Seat Post: Steel, 25.4 Integrated to Saddle
- Length: 47.638"
- Width: 8661"
- Height: 22.441"
- Weight: 12.22kg
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.