Mongoose Legion Kids Freestyle Sidewalk BMX Bike, Beginner Riders, Boys and Girls, 16-20-inch Wheels, Hi-Ten Steel Frame, Micro Drive BMX Gearing
Thumbnail 1Thumbnail 2Thumbnail 3Thumbnail 4Thumbnail 5Thumbnail 6Thumbnail 7

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

4.3/5
Product ID: 74978866
Secure Transaction

Details

  • Bike Type
    BMX Bike
  • Age Range (Description)
    Little Kid
  • Brand
    Mongoose
  • Number of Speeds
    1
  • Color
    Red
  • Wheel Size
    20 Inches
🚲20-inch BMX wheels for agile cruising
⚙️Micro Drive single-speed drivetrain
🛠️Hi-Ten steel frame built tough

Description

🚀 Own the streets with the ultimate beginner BMX bike!

  • BUILT TO LAST - Durable Hi-Ten steel frame and fork designed to withstand every adventure and stunt.
  • SMOOTH CONTROL - Steel linear pull brakes deliver precise stopping power for confident riding.
  • EFFORTLESS PEDALING - Single-speed Micro Drive gearing with a 36T chainring for easy, reliable performance.
  • READY TO ROLL FREESTYLE - Perfect 20-inch wheels and BMX style for beginner riders ready to own the sidewalk.
  • CONFIDENCE IN EVERY RIDE - Ergonomic 18.2-inch top tube and quality steering components tailored for kids 4’0” to 5’4”.

The Mongoose Legion Kids Freestyle BMX Bike is a rugged, beginner-friendly 20-inch BMX designed for kids between 4’0” and 5’4”. Featuring a tough Hi-Ten steel frame, single-speed Micro Drive drivetrain, and precision linear pull brakes, it offers durable performance and smooth control. Perfect for young riders stepping into freestyle BMX riding with confidence and style.

Large manufacture image 1Large manufacture image 2Large manufacture image 3

Specifications

Bike TypeBMX Bike
Age Range (Description)Little Kid
BrandMongoose
Number of Speeds1
ColorRed
Wheel Size20 Inches
Frame MaterialAlloy Steel
Suspension TypeRigid
Special Featurefreestyle, Aluminum Frame, BMX
Included ComponentsBicycle
Size20-Inch Wheels/LSX
Brake StyleLinear Pull
Specific Uses For ProductTrail
Item Weight27.1 Pounds
ThemeBMX
StyleLxs
Model NameLegion Novice
Power SourcePedal power
Wheel MaterialAluminum
Seat Material TypePlastic
Assembly RequiredYes
Is AutographedNo
Number of Handles2
Skill LevelBeginner
Global Trade Identification Number00038675158160
Minimum User Height48 Inches
UPC038675158160
ManufacturerPacific Cycle, Inc.
Item Package Dimensions L x W x H47.25 x 22.81 x 8.43 inches
Package Weight16.56 Kilograms
Brand NameMongoose
Warranty Description5-year limited warranty on the frame and a 1-year limited warranty on parts.
MaterialSteel, Other
Suggested Usersunisex-child
Number of Items1
Part NumberM51809M50OS-PC

Reviews

4.3

All from verified purchases

D**E

Extremely Easy to Assemble. Bike Looks Amazing. M8x1.25 Tap May be Needed.

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.

S**N

Great bike for a 10 yr. old.

My 10 year old grandson loved this bike!

E**.

Great Purchase!

I had no previous experience with this brand of bikes before this, but bought this and two others as Christmas gifts. Wow!! My kids love these bikes!Well made, easy to assemble, great value. The first day my kids were ready to ride several miles on these bikes. The thicker tires made it easy to go over multiple types of terrain. Everything is just really well made and put together. Super stoked about this purchase and the two others!

J**7

It's nice...

My 5 ½ year old boy is a little bit taller & thicker than most of his peers & the bike is almost too big for him but that was kind of the goal when deciding to upgrade his BMX. He was way to big for his first peddle BMX bicycle, so it's nice he'll grow into this one & he really seems to be enjoying it. I did throw a front brake on there just because I had one laying around that fit perfectly but tbh I adjust that to where it barely grabs because we're not too keen on him doing an indo & knocking his teeth out. There's no peddle brake on this bike, so if you're going from a bigginner bike, that almost always have the rear peddle brake, just be aware this has a hand brake, it does require large enough hands to reach it, & a bit of strength to get the brake to engage.All in all, so far, it's a nice BMX for a 5 ½ to say up to about 7 or 8 years old depending on how big a kid. I wouldn't consider this a beginner bicycle, it's more of a 2nd or 3rd bicycle not a 1st IMO.

P**M

BMX bike

grandson loves it

J**.

I Will NEVER buy another Mongoose

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.

E**R

Mongoose

Excellent ítem

C**

Great quality

Our 10 year old, very athletic, grandson loves his new bmx. Does all the tricks and track work he wants.

Common Questions

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Farhan Q.

The delivery time was excellent, and the packaging was secure.

2 months ago

Anita G.

Good experience, but the tracking updates could be better.

2 months ago

Shop Global, Save with Desertcart
Value for Money
Competitive prices on a vast range of products
Shop Globally
Serving over 300 million shoppers across more than 200 countries
Enhanced Protection
Trusted payment options loved by worldwide shoppers
Customer Assurance
Trusted payment options loved by worldwide shoppers.
Desertcart App
Shop on the go, anytime, anywhere.
R19289

Duties & taxes incl.

South Africastore
1
Free Returns

30 daysfor PRO membership users

15 dayswithout membership

Secure Transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Pooja R.

The customer service exceeded my expectations. Perfect for buying products you can't find elsewhere.

1 week ago

Suresh K.

Very impressed with the quality and fast delivery. Will shop here again.

4 days ago

Mongoose Legion Kids Freestyle Sidewalk Bmx Bike Beginner Riders Boys | Desertcart South Africa