Mongoose legion L500 complete

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Mongoose Upgrades Its Legion Line With L500

Mongoose is on a Roll with all their upgraded complete BMX offerings. Now the Legion series gets an upgrade with the flagship model, the L500! This is their top of the line BMX street/park bike and it’s full of dope treats!


  • Mongoose full 4130 Chromoly frame, removable brake mounts, and mid BB shell.
  • Drive-train features 175 mm two-piece tubular chromoly hollow spindle cranks with a 25T aluminum chain ring 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 freecoaster rear hub.
  • 4130 chromoly handlebar and fork, 50 mm stem, thread-less sealed integrated headset, and aluminum U-brake and brake levers.
  • 21″ top tube length. Suggested rider height is 5’8″ and Up.

FORK4130 chromoly

Crank Icon

CRANK2-piece, tubular chromoly hollow spindle, 25T aluminum chainring

Chain Icon


Bottom Bracket Icon

BOTTOM BRACKETMid sealed bearing, Mid sealed bearing, 48-spline spindle

Cog Icon

REAR COGSingle-speed, 9T freecoaster

Rim Icon

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

Hubs Icon

FRONT HUBAluminum, sealed-bearing, 3/8 in bolt, 36H

Hubs Icon

REAR HUBAluminum, sealed bearing freecoaster rear hub, 14 mm axle, 36H

Spokes Icon

SPOKES14G, steel, black

Tires Icon

TIRES20 in x 2.4 in, wire bead

Pedal Icon

PEDALSMongoose, nylon

Brakes Icon

BRAKESU-brake, aluminum

Handlebar Icon

HANDLEBARMongoose, 4130 chromoly, 29 in width, 8.75 in rise

Stem Icon

STEMMongoose, threadless top load, 50 mm

Headset Icon

HEADSETThreadless, integrated 1-1/8″, cartridge bearing

Seat Post Icon

SEAT POSTPivotal, steel, 250 mm, 25.4 mm

mongoose seat l500

SADDLEMongoose Pivotal

Grips Icon

GRIPSMongoose, 160 mm


The bike is only available in one size, 21″ TT

Visit for more details!

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