With the Legion Series, Mongoose offers a full line of freestyle style bikes for riders of all ages and ability levels. The Legion L10 is a great first 20” BMX-style bike that features the geometry and feel preferred by today’s riders!
- Durable Hi-Ten Steel frame.
- Drivetrain features 170 mm one-piece forged steel crank with a 25T steel chainring and American loose ball bottom bracket.
- 20” x 2.25” tires mounted on aluminum single wall 36H rims with 3/8” in axle front hub and 9T cog ball bearing cassette rear hub.
- Hi-Ten handlebar and fork, 48 mm stem, standard 1-1/8” headset, and steel U-brake and aluminum/resin brake levers.
- 20” top tube length. Suggested rider height is 4’4” – 5’0”.
Specifications
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Frame
Hi-Ten steel, BMX freestyle geometry
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Fork
Hi-Ten steel
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Crank
3-piece, tubular chromoly, 25T steel chainring
- Chain
KMC S1 -
Bottom Bracket
American loose ball
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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
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Tires
20 in x 2.25 in, wire bead
- Pedals
Mongoose, nylon -
Brakes
U-brake, aluminum
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Handlebar
Mongoose, Hi-Ten steel, 27.5 in width, 8 in rise
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Stem
Mongoose, threadless top load, 48 mm
- Headset
Threadless, 1-1/8" external, retainer bearing - Seat Post
Steel, 250 mm, 25.4 mm -
Grip
Mongoose Mush, 145 mm
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Saddle
Mongoose, steel rails
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Size
One size
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Extras
Brake detangler
Mongoose Legion Freestyle BMX Bike SeriesThe Legion L10 features a full Hi-Ten steel frame (20” top tube) and removable brake mounts. The L10 Hi-Ten steel 8” rise handlebar and 48mm stem are designed for precision riding, while the aluminum single wall 36H rims and 2.25” BMX tires offer grip and durability. The 25x9T gearing with two-piece tubular chromoly 170mm hollow spindle cranks and American loose ball bottom bracket offer a clean, reliable drivetrains.
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Mongoose Legion L10 Freestyle BMX BikeFor 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 L10 is designed to be a great introduction into the world of BMX. |
 Hi-Ten Steel FrameThe L10 features a durable Hi-Ten Steel frame, removable brake mounts, and a 20-inch top tube length. Suggested rider height is 4’4” – 5’0”. |
 Drivetrain and ChainringThe L10’s drivetrain features 170mm 1-piece forged steel crank with a 25T steel chainring and American loose ball bottom bracket. |
 Wheelset and HubsThe wheelset features 20” x 2.25” tires mounted on aluminum single wall 36H rims with 3/8” female axle front hub and 9T cog sealed bearing cassette rear hub. |
 Handlebars and StemSteel U-brake and aluminum/resin brake levers provide precision speed control, while the Hi-Ten handlebar and fork are joined by a 48mm stem and threadless sealed integrated headset for maximum steering performance. |