MongooseBMX Legion 40 Bike

About

The Mongoose Legion L40 is a full-sized 20″ freestyle BMX bike crafted for park, street, or dirt riding. With its durable steel frame and freestyle geometry, it’s built to help riders land their first tricks and progress with confidence. Whether your child is starting out or refining their skills, the Legion L40 offers the toughness and performance needed for BMX fun.

Product Features

• Hi-Ten steel frame and fork for long-lasting durability
• Mid-BB shell and BMX freestyle geometry for trick riding
• 3-piece tubular chromoly crank for added strength and performance
• Sealed mid bottom bracket for low maintenance and smooth operation
• 20″ x 2.3″ wide tires for excellent grip and cushioning
• Lightweight aluminum single-wall rims with 36 spokes
• Rear sealed-bearing cassette hub with 9T driver
• Aluminum U-brake for responsive and reliable stopping power
• 28" wide handlebar with 8" rise for better control
• Top-load stem and threadless integrated headset for secure, solid steering
• Youth-friendly components including padded saddle, comfy grips, and platform pedals

Product Specifications

• Frame: Hi-Ten steel, freestyle geometry, mid BB shell
• Fork: Hi-Ten steel
• Top Tube Length: 20.5″
• Crankset: 3-piece tubular chromoly, 175 mm arms, 25T steel chainring
• Bottom Bracket: Sealed mid, 8-spline spindle
• Drivetrain: KMC S1 chain, 9T cassette driver
• Brakes: Aluminum U-brake with alloy brake lever
• Handlebar: Hi-Ten steel, 28″ width, 8″ rise
• Stem: Top-load, 50 mm
• Headset: Integrated threadless, 1-1/8″ sealed cartridge
• Seatpost: Steel, 250 mm, 25.4 mm diameter
• Saddle: Mongoose Unifier padded saddle
• Grips: Mongoose MushXL, 160 mm
• Pedals: Nylon platform, 1/2″
• Rims: Aluminum single-wall, 36H, 24 mm internal width
• Tires: 20″ x 2.3″, wire bead
• Hubs:
  • Front: Steel, loose-ball bearing, 3/8″ axle
  • Rear: Sealed-bearing cassette, 14 mm axle
• Spokes: 14-gauge, steel
• Weight: Approximately 12.2 kg (26.9 lbs)
• Recommended Rider Height: 152–168 cm (approx. 5'0″–5'6″)

What's in the box?

• 1x Black Mongoose Legion L40 20″ BMX Bike
• 1x Instruction Manual and basic tools