Mongoose – Legion L100


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!

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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

TIRES – 20 in x 2.4 in, wire bead

PEDALSMongoose, nylon

BRAKESU-brake, aluminum

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

STEMMongoose, threadless top load, 50 mm

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

SEAT POSTPivotal, steel, 250 mm, 25.4 mm

SADDLEMongoose Pivotal

GRIPSMongoose MushXL, 160 mm

SIZESOne size

Additional information


White, Green


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