- Frame: Hi-Ten Steel
- 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: American Loose Ball, 8-Spline Axle
- Chain: KMC Z410
- Rear Cogs: 9T Cassette Driver
- Handlebar: Mongoose Hi-Ten 8.75"
- Grips: Mongoose Mush, 145mm
- Stem: Mongoose Front Load 48mm Ext.
- Headset: Threadless 1 1/8" External
- Brakes and Brake Lever: Alloy U-Brake
- Saddle: Mongoose Slim Railed
- Seatpost: Steel, 25.4
- Includes Brake Detangler
- Length: 47.638"
- Width: 8.661"
- Height: 22.835"
- Weight: 13.20kg
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.