With the Legion Series, Mongoose offers a full line of freestyle BMX bikes for riders of all ages and ability levels. The Legion L10 is a great first 20” BMX bike that features the geometry and feel preferred by today’s riders! 


  • Frame: Hi-Ten steel, BMX freestyle geometry with 20.3" TT
  • Fork: Hi-Ten steel
  • Crank: 3-piece, tubular chromoly, 25T steel chainring
  • Chain: KMC S1
  • Bottom Bracket: American loose ball
  • Rear Cog: Single-speed, 9T cassette driver
  • Rims: Aluminum single wall, 24 mm ID, 36H
  • Front Hub: Steel, ball bearing, 3/8 in axle, 36H
  • Rear Hub: Steel, ball bearing, 3/8 in axle, 36H
  • Spokes: 14G, steel, black
  • Tyres: 20 in x 2.25 in, wire bead
  • Pedals: Mongoose, nylon
  • Brakes: U-brake, aluminum
  • Handlebar: Mongoose, Hi-Ten steel, 27.5 in width, 8 in rise
  • Stem: Mongoose, threadless top load, 48 mm
  • Headset: Threadless, 1-1/8” external, retainer bearing
  • Seat Post: Steel, 250 mm, 25.4 mm
  • Saddle: Mongoose, steel rails
  • Grips: Mongoose Mush, 145 mm


Brand Mongoose

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