For 45 years, Mongoose has been in the dirt, down the trails, and on the ramps. With the Legion Series, Mongoose offers a full line of freestyle BMX bikes for riders of all ages and ability levels. The Legion L40 was designe...

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For 45 years, Mongoose has been in the dirt, down the trails, and on the ramps. With the Legion Series, Mongoose offers a full line of freestyle BMX bikes for riders of all ages and ability levels. The Legion L40 was designed to be a fully park, street and dirt worthy BMX bike. The Legion L40 features a Hi-Ten steel frame (20.5” top tube), tapered headtube, mid BB shell, and removable brake mounts. The L40 Hi-Ten steel 8.75” rise handlebar and 50mm stem are designed for precision riding, while the aluminum single wall 36H rims and 2.3” BMX tires offer grip and durability when landing a trick. The 25x9T gearing with 3-piece tubular chromoly 175mm hollow spindle cranks and mid sealed bottom bracket offer a clean, reliable drivetrains. Aluminum U-brake with alloy brake levers provide speed control, while the Hi-Ten steel BMX fork with 1-1/8" threadless steerer and taper leg helps maximize performance. This bike ships ready to be assembled and comes with a 5-year limited warranty on the frame and a 1-year limited warranty on parts.

  • The Legion L40 is a fully park, street or dirt worthy freestyle BMX bike that offers everything a new rider could need to bust their first tricks on their local ramp; Suggested rider height is 5 feet 0 inches to 5 feet 6 inches
  • The durable L40 features a Hi Ten steel frame, removable brake mounts, mid BB shell, and a 20.5 inch top tube length
  • The L40’s drivetrain features 175mm 3 piece tubular chromoly hollow spindle cranks with a 25T steel chainring and mid sealed bearing bottom bracket
  • The wheelset features 20 x 2.3 inches tires mounted on aluminum single wall 36H rims with 3/8 inches female axle front hub and 9T cog sealed bearing cassette rear hub
  • Aluminum U brake and brake levers provide precision speed control, while the Hi Ten steel handlebar and fork are joined by a 50 mm stem and threadless sealed integrated headset for maximum steering performance
  • The Legion L40 is a fully park, street or dirt worthy freestyle BMX bike that offers everything a new rider could need to bust their first tricks on their local ramp; Suggested rider height is 5 feet 0 inches to 5 feet 6 inches
  • The durable L40 features a Hi Ten steel frame, removable brake mounts, mid BB shell, and a 20.5 inch top tube length
  • The L40’s drivetrain features 175mm 3 piece tubular chromoly hollow spindle cranks with a 25T steel chainring and mid sealed bearing bottom bracket
  • The wheelset features 20 x 2.3 inches tires mounted on aluminum single wall 36H rims with 3/8 inches female axle front hub and 9T cog sealed bearing cassette rear hub
  • Aluminum U brake and brake levers provide precision speed control, while the Hi Ten steel handlebar and fork are joined by a 50 mm stem and threadless sealed integrated headset for maximum steering performance

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