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Mongoose Legion Kids Freestyle BMX Bike, Intermediate Rider, Boys and Girls Bikes, 20-Inch Wheels, Hi-Ten Steel Frame, Micro Drive 25x9T BMX Gearing
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Mongoose Legion Kids Freestyle BMX Bike, Intermediate Rider, Boys and Girls Bikes, 20-Inch Wheels, Hi-Ten Steel Frame, Micro Drive 25x9T BMX Gearing

4.3/5
Product ID: 72307474
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Details

  • Bike Type
    BMX Bike
  • Age Range (Description)
    Big Kid
  • Brand
    Mongoose
  • Number of Speeds
    1
  • Color
    Black
  • Wheel Size
    20 Inches
🚲20-inch wheels for agile street riding
⚙️Micro Drive 25x9T BMX gearing for smooth power transfer
🛠️Hi-Ten steel frame built for durability

Description

🚀 Own the streets with style and precision – ride the Mongoose Legion!

  • BUILT TO LAST - Hi-Ten steel frame and aluminum rims combine strength with lightweight performance for lasting rides.
  • TAILORED FOR GROWTH - Ideal for riders 4’8” to 5’4”, with a 20.25-inch top tube for perfect fit and comfort.
  • PRECISION POWERTRAIN - Micro Drive 25x9T gearing paired with forged steel cranks ensures smooth, responsive pedaling.
  • STREET READY AGILITY - 20-inch wheels with 2.3” tires deliver nimble control and confident curb popping.
  • CONTROL AT YOUR FINGERTIPS - Single rear aluminum U-brake and ergonomic levers provide precise speed modulation on any terrain.

The Mongoose Legion Intermediate BMX bike is a 20-inch freestyle bike designed for kids and teens between 4’8” and 5’4”. Featuring a durable Hi-Ten steel frame, precision Micro Drive 25x9T gearing, and responsive U-brakes, it offers a perfect blend of strength, control, and style for beginner to intermediate riders ready to conquer urban trails and street tricks.

Specifications

Bike TypeBMX Bike
Age Range (Description)Big Kid
BrandMongoose
Number of Speeds1
ColorBlack
Wheel Size20 Inches
Frame MaterialAlloy Steel
Suspension TypeRigid
Special Featurefreestyle, Aluminum Frame, BMX
Included ComponentsBicycle
Size20-Inch Wheels L20
Brake StyleU Brake
Specific Uses For ProductTrail
Item Weight34.4 Pounds
StyleL20
Model NameLegion Intermediate
Power SourcePedal power (human energy transferred through a drivetrain)
Wheel MaterialAluminum
Year2023
Seat Material TypeMongoose Unifier
Warranty TypeLimited
Maximum Weight Recommendation220 Pounds
Assembly RequiredYes
Bicycle Gear Shifter TypeTrigger
Is AutographedNo
Number of Handles1
Global Trade Identification Number00038675158092
Minimum User Height5 Feet
UPC038675158092
Bicycle Drivetrain TypeSingle-speed
ManufacturerPacific Cycle, Inc.
Item Package Dimensions L x W x H48.58 x 23.07 x 8.74 inches
Package Weight16.9 Kilograms
Item Dimensions LxWxH23.62 x 8.66 x 48.82 inches
Brand NameMongoose
Warranty DescriptionLimited LIfetime
MaterialAluminum
Suggested Usersunisex-child
Number of Items1
Part NumberM41509M10OS-PC

Have a Question? See What Others Asked

Are the bike pegs removable? My son wants to use it as a dirt jumper.
how much does the bike weigh in total
My son is 7yr old and is 4'3" will the L20 fit him?
Is the legion L20 a good fit for a teenager?

Reviews

4.3

All from verified purchases

A**R

Great Quality for the price!

Let me be up front, I paid $179 for this bike. It is the gray L60. I just looked again and the bike is now listed for almost $350. I’m not sure I would pay that for this bike. Not because it’s not worth that, but because I would probably buy a higher end brand for the same price. But, that’s just me.I bought this for my son on his 9th birthday. He is very tall for his age at a little over 5 feet. According to the specs, he would be on the bottom end of the height range for this bike and it fits him perfectly. I am 6’ 2”, 250 pounds and I wouldn’t hesitate to buy this bike for myself based on the dimensions. The handlebars are a really nice height for me to ride.I could not find out what the exact material the frame is, but it is very light. I was hoping to get him a Chromoly frame, and I would say that this would fit in that weight range. Everything is very stout and tight. I would not personally hesitate to take this bike to the park and jump it… Which I did. The crank did not flex at all, and I really love how fat the tires are. All around, I am impressed with the bike. The paint job had a nice detail in it near the welds to mimic a heat blemish, which is a throwback to the old days, when chrome bikes were welded and the heat would blemish the chrome and turn it a rainbow color.The only Cons that I really found with the bike was under the fork where the neck stem passes through the fork and is welded in place, there was a really bad cut and weld. There are also a hint of rust on a few parts of the bike. I’m assuming from being shipped overseas from China. The metal Mongoose decal for the front of the head stem was a stick on thing. It may be that kids these days want a clean look and they did that as an option.Other than those things, I can’t find anything else mechanically or geometrically wrong with the bike. To be clear, this is not a Walmart licensed product. This is a mongoose bike produced by mongoose or the company that owns mongoose.p.s. it wouldn’t be a bad idea to make sure that the neck, crank and wheel hubs are all at the correct tightness. They feel a little tight out of the box. This is super easy to do yourself, but if you’re unsure, just take it to a bike shop.

J**K

L60 Grey! Best Value BMX while it lasts!

Was looking to get back into BMX. I mean I'm buying a BMX for my 5yo son (wink). Just wanted something like I had in the 90s. Everything was $200 and above. Walmart has a Mongoose Rebel X1 for $182 that I almost bought. Then suddenly, as if reading some kind of chip implanted in my brain, or device, Amazon shines light on the Mongoose Legion Intermediate L60 in Grey for $153. The listing photo does not match and shows a L20 grey but the listing "Part Number" comes back as the proper L60 in grey and is what you get. I wait and the price goes to $155 but with a 20% off coupon. No brainer from there.The Legion 60 is an upgrade from the Rebel X1 which I match most to the Legion 20 from what I can verify and see in photos. The L60 has a sealed rear hub and sealed head design that makes it superior to the L20 and the L40 which had a sealed rear hub. The L60 does not come with pegs but the front axle will accept 3/8 pegs or the Mongoose Freestyle Steel Pegs. The rear axle is 14mm so you need larger diameter pegs for the rear. The rear-axle has plenty of thread left for pegs. The seat tilt is fixed. The head part of the frame already has slots ready for a gyro brake system but the L60 does not have the system installed. The frame is Hi-Ten steel which I don't mind and is what I had back then anyway and you cant really find chromoly frame builds for less that $300. $130.37 out the door on this bike for what it has is a super duper deal. It is made in China but for an OEM bike, I could never build something like this for that price. A frame and maybe wheels without tires is most I'd get under $150.Congrats to all who got the L60 in grey at a great price. Thanks Amazon for the super ai deals and Mongoose for still making and baking.

A**S

Great quality bike and light weight

This Legion L20 is the third Mongoose BMX bike I've purchased over the last year, and I've been very happy with all three (Legion LSX, Title Pro, and L20).Assembly was very easy on all three bikes; just need to attach the front wheel, handle bars, and pedals. Took only about 15 mins. You just need to pay attention to the direction of the forks and remember the left pedal will be left-hand threaded. The forks and pedals have stickers denoting front/rear, left/right.Besides adjusting for height and putting air in the tires, there really wasn't any need for fine adjustments (chain tension, brakes, misc. nuts, etc.), as these things are being adjusted correctly from the factory (nice surprise).After reading the negative reviews on this bike and the others mentioned, it seems many of them are related to incorrect user assembly. If you put the forks on backwards or don't put air in the tire, you're going to have problems.The Legion L20 is reasonably light at roughly 25 lbs., easy to ride, and looks great. Note, however, that this is a freestyle bike, and probably not the best choice if you're just looking for a neighborhood cruiser. The crank bracket sits about 1" higher than on a race type BMX bike, making the apex pedal feel too high when in a sitting position. This may not bother some people. If it does, you could buy shorter cranks, but with the money you'd spend, it would be more logical to just go with a race style bike with the lower bracket (and larger front sprocket). The Title series with a lengthened seat post makes for a great lightweight cruiser.Not much to complain about on this bike. Excellent quality for the money. If you're looking for a reasonably priced freestyle bike with good quality, at $156, this is a great choice.

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Rajesh P.

Customer service was outstanding when I had questions about the product.

2 days ago

Fatima A.

Best international shipping I've ever tried. Worth every penny!

3 days ago

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Sneha T.

Received my product in pristine condition. Great service overall.

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Customer service was outstanding when I had questions about the product.

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