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Mongoose

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

    • Based on 3,087 reviews
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This item's return window has been extended for the holiday season: Returnable until Jan 31, 2025

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Availability: In Stock.
Fulfilled by Amazon
Arrives Saturday, Dec 28
Order within 20 hours and 38 minutes
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Color: White


Size: 20-Inch Wheels L40


Features

  • L40 is a fully park, street or dirt-worthy freestyle BMX bike that offers everything a new rider could need to bust their first tricks on their local ramp! Suggested rider height is 50-56
  • Durable bike, built with a Hi-Ten steel frame, removable brake mounts, and a mid BB shell, and has a top tube length of 20.5"
  • Equipped with a high-performance drivetrain that includes 175 mm 3-piece tubular chromoly hollow spindle cranks, a 25T steel chainring, and a mid-sealed bearing bottom bracket
  • Wheelset featuring 20" x 2.3" tires mounted on 36H aluminum single-wall rims, along with a 3/8" female axle front hub and a 9T cog sealed bearing cassette rear hub
  • Aluminum U-brake and brake levers provide precision speed control, while the Hi-Ten steel handlebar and fork are joined by a 50 mm stem and threadless sealed integrated headset for maximum steering performance

Description

For 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 L20 was designed to be a fully park, street and dirt worthy BMX bike. The Legion L20 features a Hi-Ten steel frame (20.25” top tube), tapered headtube, and removable brake mounts. The L20 Hi-Ten steel 8” rise handlebar and 48mm stem are designed for precision riding, while the wide aluminum single wall 36H rims and 2.3” BMX tires offer grip and durability. The 25x9T gearing with one-piece tubular chromoly 170mm hollow spindle cranks and American loose ball bottom bracket offer a clean, reliable drivetrains. An alloy U-brake with alloy brake levers provide speed control, while the Hi-Ten Steel BMX fork with 1-1/8" threadless steerer and taper leg helps maximize performance. This bike ships ready to be assembled and comes with a 5-year limited warranty on the frame and a 1-year limited warranty on parts.

Bike Type: BMX Bike


Age Range (Description): Big Kid


Brand: Mongoose


Number of Speeds: 1


Color: White


Wheel Size: 20 Inches


Frame Material: High Tensile Steel


Suspension Type: Rigid


Special Feature: freestyle, Aluminum Frame, BMX


Included Components: Mongoose Legion L40 Freestyle BMX Bike


Bike Type: ‎BMX Bike


Age Range (Description): ‎Big Kid


Brand: ‎Mongoose


Number of Speeds: ‎1


Color: ‎White


Wheel Size: ‎20 Inches


Frame Material: ‎High Tensile Steel


Suspension Type: ‎Rigid


Special Feature: ‎freestyle, Aluminum Frame, BMX


Included Components: ‎Mongoose Legion L40 Freestyle BMX Bike


Size: ‎20-Inch Wheels L40


Brake Style: ‎U Brake


Specific Uses For Product: ‎Trail


Item Weight: ‎12 Kilograms


Theme: ‎Action Sports


Style: ‎L40


Model Name: ‎Legion Intermediate


Wheel Material: ‎Aluminum


Year: ‎2020


Seat Material Type: ‎Plastic


Warranty Type: ‎Limited


Assembly Required: ‎Yes


Is Autographed: ‎No


Skill Level: ‎Intermediate


Global Trade Identification Number: ‎39


UPC: ‎038675187139


Manufacturer: ‎Pacific Cycle, Inc.


Item Package Dimensions L x W x H: ‎48 x 23 x 8 inches


Package Weight: ‎15.51 Kilograms


Item Dimensions LxWxH: ‎23.62 x 8.66 x 48.82 inches


Brand Name: ‎Mongoose


Warranty Description: ‎Limited lifetime warranty on frame and one year warranty on parts


Material: ‎Steel


Suggested Users: ‎unisex-child


Number of Items: ‎1


Part Number: ‎M41500U10OS-PC


Date First Available: August 6, 2019


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, Dec 28

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

    • The brand holds up!
Color: Grey Size: 20-Inch Wheels L60
This is the second model of Mongoose we have purchased for our son who spends his free time riding his bike. He does not go easy on these and they have held up so well! The quality is amazing, it’s very user friendly and the brakes work very well. My son loved the way the bike looks and the bike was very easy to assemble ... show more
Reviewed in the United States on December 12, 2024 by Leanna Moon
    • Great Quality for the price!
Color: Grey Size: 20-Inch Wheels L60
Review Image by A & R A & R
Review Image by A & R A & R
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. ... show more
Reviewed in the United States on May 25, 2023 by A & R A & R
    • Great quality bike and light weight
Color: Blue Size: 20-Inch Wheels L20
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. ... show more
Reviewed in the United States on October 24, 2020 by Anonymous

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