Mongoose Legion L100

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  • Regular price £460.00
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With the Legion Series, Mongoose offers a full line of freestyle BMX bikes for riders of all ages and ability levels. The Legion L100 was designed to be a fully park, street and dirt worthy BMX bike that offers everything a rider could need from beginner level curb jumps all the way up to advanced aerial tricks on a quarterpipe!

  • Mongoose full 4130 Chromoly frame, tapered headtube, removable brake mounts, and mid BB shell.
  • 175mm 2-piece tubular chromoly hollow spindle cranks with a 25T alloy chainring and mid sealed bearing bottom bracket.
  • 20” x 2.4” tires mounted on wide aluminum double wall 36H rims with 3/8” female axle front hub and 9T cog sealed bearing cassette rear hub.
  • 4130 chromoly handlebar and fork, 50mm stem, threadless sealed integrated headset, and Alloy U-brake.
  • 21-inch top tube length. Suggested rider height is 5'8" and up.


FRAME- 4130 chromoly, BMX freestyle geometry, removable brake mounts, integrated headset, mid BB shell

FORK- 4130 chromoly

CRANK- 2-piece, tubular chromoly hollow spindle, 25T aluminum chainring


BOTTOM BRACKET- Mid sealed bearing, 8-spline spindle

REAR COG- Single-speed, 9T cassette driver

RIMS- Xposure Infinity-XD, aluminum double wall, 30 mm ID, 36H

FRONT HUB- Aluminum, ball bearing, 3/8 in axle, 36H

REAR HUB- Aluminum, sealed-bearing cassette, 14 mm axle, 36H

SPOKES- 14G, steel, black

TYRES- 20 in x 2.4 in, wire bead

PEDALS- Mongoose, nylon

BRAKES- U-brake, aluminum

HANDLEBAR- Mongoose, 4130 chromoly, 29 in width, 8.75 in rise

STEM- Mongoose, threadless top load, 50 mm

HEADSET- Threadless, integrated 1-1/8”, cartridge bearing

SEAT POST- Pivotal, steel, 250 mm, 25.4 mm

SADDLE- Mongoose Pivotal

GRIPS- Mongoose MushXL, 160 mm

SIZES- One size