Search  for anything...

Mongoose Legion Kids Freestyle Sidewalk BMX Bike, Beginner Riders, Boys and Girls, 16-20-inch Wheels, Hi-Ten Steel Frame, Micro Drive BMX Gearing

  • Based on 3,993 reviews
Condition: New
Checking for product changes
$269.99 Why this price?
Save $30.00 was $299.99

Buy Now, Pay Later


As low as $45.00 / mo
  • – 6-month term
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout. Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Affirm, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

Eligible for Return, Refund or Replacement within 30 days of receipt

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.


Availability: In Stock.
Fulfilled by Amazon

Arrives Monday, May 20
Order within 2 hours and 59 minutes
Available payment plans shown during checkout

Color: Green


Size: 16-Inch Wheels/L16


Features

  • Legion L16 gives little kids a perfect feel for what BMX is all about, rider height recommendation is 40 and smaller
  • Durable Hi-Ten steel frame with 15.3 top tube length
  • Single speed drivetrain features a 130 mm one-piece crank with a 25T alloy chainring and American loose ball bearing bottom bracket
  • Wheelset features 16 x 2.3 tires mounted on aluminum single wall 28H rims with 3/8 female axle front hub and 9T cog sealed bearing cassette rear hub
  • Aluminum U-brake provides precision speed control, while the Hi-Ten steel handlebar and fork are joined by a 40 mm stem 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 L10 is designed to be a great introduction into the world of BMX. The Legion L10 features a full Hi-Ten steel frame (20” top tube) and removable break 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 one-piece tubular chromoly 170 mm hollow spindle cranks and American loose ball bottom bracket offer a clean, reliable drivetrains. A steel U-brake with aluminum/resin brake levers provide speed control, while the Hi-Ten steel BMX fork with 1-1/8" threadless steerer 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): Little Kid


Brand: Mongoose


Number of Speeds: 1


Color: Green


Wheel Size: 16 Inches


Frame Material: High Tensile Steel


Suspension Type: Rigid


Special Feature: freestyle, Lightweight, Aluminum Frame, BMX


Included Components: Legion L16, Bicycle


Bike Type: ‎BMX Bike


Age Range (Description): ‎Little Kid


Brand: ‎Mongoose


Number of Speeds: ‎1


Color: ‎Green


Wheel Size: ‎16 Inches


Frame Material: ‎High Tensile Steel


Suspension Type: ‎Rigid


Special Feature: ‎freestyle, Lightweight, Aluminum Frame, BMX


Included Components: ‎Legion L16, Bicycle


Size: ‎16-Inch Wheels/L16


Brake Style: ‎U Brake


Specific Uses For Product: ‎Trail


Item Weight: ‎12 Kilograms


Style: ‎L16


Model Name: ‎Legion Novice


Wheel Material: ‎Aluminum


Year: ‎2020


Skill Level: ‎Beginner


Item Package Dimensions L x W x H: ‎40 x 19.75 x 8.5 inches


Package Weight: ‎13.4 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: ‎other


Suggested Users: ‎unisex-child


Number of Items: ‎1


Manufacturer: ‎Pacific Cycle, Inc.


Part Number: ‎M41600U10OS-PC


Date First Available: August 6, 2019


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, May 20

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.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • PayTomorrow Financing
  • Apple Pay Later
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Extremely Easy to Assemble. Bike Looks Amazing. M8x1.25 Tap May be Needed.
Color: Orange Size: 20-Inch Wheels/MAG
The bike from the pictures looked pretty cool. I didn't realize how beautiful this bike would be until it came in the mail. I purchased the Legion Mag in orange for my 8 year old. It was great to see his reaction on Christmas when receiving this bike. He was so excited. I read some other reviews from reviewers who had complaints on the difficulty of assembling the bike and in my opinion the people having trouble assembling the bike must be blatantly ignorant or illiterate. The instructions for assembly are written so a teenager could assemble this bike, with clearly labeled diagrams and more in depth explanations than what is necessary for assembly. The instructions on assembly are excellent and I had almost no trouble assembling the bike without them until it came to adjusting the brakes. I assembled the entire bike without instructions except for the brakes because it is just self explanatory. I was also able to assemble the brakes without any trouble or needing the instructions although I did refer to them for proper adjustment and alignment protocols. The only issue I had when assembling the bike is when I got to the point of attaching the handlebars to the handlebar binder assembly attached to the stem. The four socket cap screws that tighten down on the handlebar binder bracket would not thread easily. I felt as though I would break the screws or destroy the threads if I attempted to tighten them down far enough to grip the handlebars. There was too much paint in the threaded holes and also the tolerances on the machining of the threads was not great. I have included some pictures showing just how much paint was removed from tapping and also chips from burs in the threaded holes from poor tolerance drilling and tapping at the factory. In order to fix this problem I grabbed a tap handle and a M8x1.25 normal thread tap and tapped the holes. I would give this bike a 4.9 out of 5 if I could just because I needed to tap these holes and a tap was not listed as a required tool. I don't think many people will have problems assembling the bike even if they have this issue and need to tap the four holes as these are the only holes that need anything to be screwed into. Honestly if you don't at the very least know how to use a tap and die set you probably shouldn't be assembling a bike as it's not safe to do so if you're not familiar with basic tools. You could wind up hurting your child from pure negligence if you don't know how to use basic hand tools to assemble this bike properly. My suggestion is that you take it to a local bike shop and pay $30-$40 to have them assemble the bike and adjust the brakes if you don't know what you are doing. I assume some people who buy this bike will do just that with the majority of people knowing how basic hand tools work and them being able to assemble it themselves. Overall the bike is amazing, my son loves it, it was extremely easy to assemble, and I recommend you tap the holes on the handlebar binder even if it doesn't need it as it will allow you to make a more secure connection. Please don't listen to people complaining about difficult assembly as it was extremely easy even the detangler brakes something of which I've never seen or dealt with on a bike before. The instructions are very clear on how to hook the brakes up and how to adjust them properly and I was actually surprised how easy it was to assemble the brakes because I was expecting something very difficult based on the reviews but it turns out these brakes are easier to assemble than normal brakes. ... show more
Reviewed in the United States on December 30, 2020 by Dave Dave

  • Love it
Color: Orange Size: 20-Inch Wheels/MAG
My son loves the bike
Reviewed in the United States on May 5, 2024 by Danielle

  • Easy to Assemble
Color: Silver/L18 Size: 18-Inch Wheels/L18
Great product. Easy to assemble!!!
Reviewed in the United States on April 19, 2024 by Papaw

  • Nice bike but…
Color: Silver/Mag Size: 20-Inch Wheels/MAG
The paint on the frame chips super easy. Like, you barely touch it with a tool and you’re going to have a small dot where a piece of paint chipped off.
Reviewed in the United States on April 15, 2024 by KM

  • Safety
Color: Silver/L18 Size: 18-Inch Wheels/L18
My grandson loves his new bike.
Reviewed in the United States on April 14, 2024 by Faith Morgan

  • Great
Color: Orange Size: 20-Inch Wheels/MAG
Bought this for my grandson because his favorite color is orange. It is a really nice bike, and he loves it.
Reviewed in the United States on March 5, 2024 by felicia

  • I Will NEVER buy another Mongoose
Color: Orange Size: 20-Inch Wheels/MAG
With all of the four and five star ratings, I must be the problem, right? The bike came partially dissembled for shipping purposes. I expected that. What I did not expect was: 1. Missing parts. One of the nuts and both of the washers were missing from the front wheel. Ok. A shipping problem. But what kind of washers do I need to go find? Should be simple. Just read the instructions. 2. Horrible Instructions: For example, to attach the front wheel, I need to follow the appropriate set of instructions depending if my bike's wheel is, "nutted with step retaining washer, nutted with clip retaining washer or quick release". But I don't know which one my bike is; the nut and both washers are missing. Every section is just like this; follow the set of instructions that pertain to your bike. But where does it say if the bike I purchased has a quill stem, a threadless stem, a front load stem or a top load stem? I have no idea. Mongoose has been around for a while. So there are plenty of videos on YouTube. But there are so many configurations for Mongoose bikes, good luck finding the right one. I watched a bunch of videos, went to Wal-Mart (twice) and got $30 worth of nuts, washers, hex drivers and, no I didn't go out and buy the lithium gel they recommended! Then I paid a bike shop $45 to put the thing together because I still couldn't figure it out. The bike shop wouldn't do the brakes because of liability purposes. But they showed me that I needed to loosen a nut and put the brake cable out some. Should be easy, except... 3. CHEAP parts!: I stripped a nut and two screws trying to tighten the brakes just enough to barely work. It's Christmas Eve and I'm soooo frustrated. Should I be worried? Every single step in the instruction book says that if I don't do this step correctly, someone could get seriously injured or killed. Here ya' go son. Have fun! Merry Christmas. I could call Mongoose Customer Support. They are open Monday through Friday 8 to 5; because that's when dads assemble bikes right? Sorry for all of the venting. I've had the bike for a week and I have to say, I have NEVER had this much trouble assembling something that came in a box. I've got $250 invested into a $170 bike and I don't feel safe letting my son ride it. I am not a happy customer. ... show more
Reviewed in the United States on December 25, 2020 by Jared D.

  • Excellent bike for our son
Color: Black/Teal Size: 20-Inch Wheels/L10
We purchased a bike elsewhere and had to return it. This bike has been amazing. It works so well, easy to get put together and great quality for the money. He loves the 'tricks' he can do with this bike and seems to hold up very well, especially since he is at the age where they are pretty hard on their equipment. ... show more
Reviewed in the United States on January 13, 2024 by Mike

Can't find a product?

Find it on Amazon first, then paste the link below.