








🚀 Own the streets with the Mongoose Legion L20 — where beginner meets badass.
The Mongoose Legion L20 is a versatile 20-inch freestyle BMX bike designed for riders from beginner to advanced levels. Featuring a durable Hi-Ten steel frame, high-performance drivetrain with forged steel cranks, and precision aluminum U-brakes, it offers reliable control and agility for street, park, and dirt riding. With a 5-year frame warranty and a sleek design available in multiple colors, the Legion L20 is built to last and impress.















| ASIN | B07W5KNZZX |
| Age Range | Big Kid |
| Batteries Included? | No |
| Best Sellers Rank | #59,524 in Sporting Goods ( See Top 100 in Sporting Goods ) #10 in BMX Bikes |
| Bike Type | BMX Bike |
| Brake Type | U Brake |
| Brand | Mongoose |
| Color | Grey |
| Customer Reviews | 4.3 4.3 out of 5 stars (3,193) |
| Date First Available | 21 October 2019 |
| Department | unisex-child |
| Features | Aluminum Frame, BMX, freestyle |
| Frame Material | High Tensile Steel |
| Included Components | Mongoose Legion L20 Freestyle BMX Bike |
| Is Discontinued By Manufacturer | No |
| Item model number | M41800U20OS-PC |
| Manufacturer | Pacific Cycle, Inc. |
| Material Type | Steel |
| Number of Items | 1 |
| Number of Pieces | 10 |
| Number of Speeds | 1 |
| Power Source | Pedal power (human energy transferred through a drivetrain) |
| Product Dimensions | 60 x 22 x 124 cm; 12 kg |
| Size | 20-Inch Wheels L20 |
| Skill Level | Intermediate |
| Style | L20 |
| Suspension | Rigid |
| Usage | Trail |
| Weight | 12 Kilograms |
| Wheel Size | 20 Inches |
| handle-type | BICYCLE |
V**M
For beginners is good
This is not professional bike for sure but for beginners its ok
A**O
Un mes con ella y es una excelente bicicleta. Se siente muy buen material y se nota a simple vista, bastante ligera. Solo al principio hay que batallar con el armado porque viene semidesarmada pero nada que no se pueda hacer con un par de llaves y paciencia. Ya dependerá de ti si quieres ir metiéndole otro tipo de piezas o modificaciones después, pero así de serie es una pasada. Ya me la han chuleado varias veces. Solo señalar que no es para recorridos largos, puedes hacerlo pero si es algo pesado al principio, más para las rodillas y la cuestión del asiento, es algo duro. Pero no es una bicicleta para viajes, es para acrobacia la BMX. Medidas yo mido 1:70. Todo sin problema.
F**E
I got it retailed for quite of a good deal below $400. And I’ve been using this BMX for a solid 3 months here and there and it doesn’t really disappoint, as long as you greased the metal parts, it’s smooth as butter The instructions on the brakes could and bearings of the handle could be more accurate and clearer though And the bikes itself seems to be a little heavier than a typical BMX. That’s the only issue I ahve with it, the weight. But nonetheless it’s overall a decent bike
K**I
This review is coming from someone who has riden bmx for over 20 years, and has worked in or been a part of the bmx industry for over a 15 years now. So I know a a few things when it comes to high end, low end and everything in between. With that out of that way, let me say this, the L100 has a lot of good going for it. If managing to catch it for under $400 you can't go wrong. The full 4130 chromoly frame fork and bars is a huge step in the right direction and an excellent starting foundation if wanting to upgrade the bike in the future. The sealed rear wheel, mid bottom bracket, and internal headset are also nice, but I'll touch on those in a bit. The frame accommodates wide tires, I've pictured a 2.4" eclat fireball in the rear. The forks also have ample space for large tires as well. Stock pivotal seat is pretty comfy. Brakes feel pretty solid for stock brakes. Now, where the bike does fall short. The front wheel, it's unsealed. At the original asking price, there are other bike companies out there in this price range offering better specs. So I would have liked to see a sealed hub here. Now, the rims on these bikes are pinned instead of welded. While not a huge deal when you take in to account who this bike is marketed to, it's still something to make note of. The sprocket suffers from the "mass produced quickly" so it was rather bent causing some tight spots. Usually this is something you can't avoid on complete bikes like this. Stock chain is dainty, so I upgraded to a shadow v2 half link. There was grease on the clamp area of the stem where the bars go. I've never in my life greased that area, and I definitely recommend anyone gets one to check it before slapping the bars on. All in all, I purchased this for my wife to pedal around with me at skateparks so I wasn't expecting to be wowed. However I wasn't let down by the quality. Mongoose may be known as a department store brand, but they do have quite the bmx heritage. I think if you can score this bike on a deep discount, or sale and swap out the wheels, chain, perhaps stem and cranks at some point. You'll have a solid bike. Straight out of the bike, it's great for beginnera and intermediate or that old guy getting back in to it after years off the bike. Also, one thing to note, some of reviews are of people who bought a bmx bike and don't really understand what they bought. So for those reviews noting the chain guard or a kick stand. This isn't meant for a kickstand. And the chain guard is there because it has to be, you really aren't expected to keep it on the bike.
G**S
Very easy set up!. Must skip through some of the install instructions as the bike does not have front brakes for install. The bike has a back break only and does not come with front and back foot pegs, we used ours from my son's old bike. I am not sure if it mentions that in the description because to be honest I didn't read the whole description at purchase haha The bike arrived quickly without damage and is absolutely awesome and sturdy. My one reccomendation is the bike frame space at the back does not allow a hookup for kick stand... minor setback.
M**O
The box has terribly damage and some dents scratches in handle bar, but still Look Good
Trustpilot
1 month ago
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