








🚀 Own the park with pro-level power and style!
The Mongoose Legion L80 is a freestyle BMX bike engineered with a durable 4130 Chromoly steel frame and 20-inch wide tires on aluminum rims, designed for advanced riders between 5’6" and 6’0". Featuring precision tubular cranks, sealed bearings, and an integrated threadless headset, it delivers smooth, responsive handling for street, park, or dirt riding. This bike blends professional-grade components with versatile performance, making it a standout choice for serious BMX enthusiasts seeking strength, control, and style.















| ASIN | B088NS783Q |
| Age Range (Description) | Big Kid |
| Assembly Required | Yes |
| Best Sellers Rank | #135,472 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #7 in BMX Bikes |
| Bicycle Drivetrain Type | Single Speed |
| Bicycle Gear Shifter Type | Trigger |
| Bike Type | BMX Bike |
| Brake Style | U Brake |
| Brand | Mongoose |
| Brand Name | Mongoose |
| Color | Tan |
| Customer Reviews | 4.3 4.3 out of 5 stars (769) |
| Date First Available | October 23, 2020 |
| Frame Material | 4130 Chromoly Steel |
| Frame Size | 20.75 inches |
| Frame Type | Hard Tail |
| Included Components | Bike |
| Item Dimensions LxWxH | 24.41 x 9.06 x 53.15 inches |
| Item Package Dimensions L x W x H | 48.5 x 23.5 x 8.5 inches |
| Item Weight | 12 Kilograms |
| Manufacturer | Pacific Cycle, Inc. |
| Material | Other, Steel |
| Minimum User Height | 66 Inches |
| Model Name | Legion BMX |
| Number of Speeds | 1 |
| Package Weight | 13.31 Kilograms |
| Part Number | M41301U10OS |
| Power Source | manual |
| Seat Material Type | Plastic |
| Size | 20-Inch Wheels |
| Special Feature | Aluminum Frame, BMX, freestyle |
| Specific Uses For Product | Trail |
| Style | L80 |
| Suggested Users | unisex-adult |
| Suspension Type | Rigid |
| UPC | 038675218635 |
| Warranty Description | Limited Lifetime |
| Warranty Type | Limited |
| Wheel Material | Aluminum |
| Wheel Size | 20 Inches |
| Year | 2022 |
P**Z
Good bike for the money , pro quality, novice riders bike.
Great bike for the money! If you are a novice rider and want pro quality at a good price this could work for you , a very sturdy chromoly frame fork and bars with some pretty good parts, double wall rims and a free coaster rear hub, strong 2 piece crankset with the normal 25t crank sprocket and a 9tooth rear free coaster hub, strong half link nickel plated chain does the job. Only problem I see with this bike is it is a little bit too heavy to be used professionally. If you are a bigger guy or gal who wants a professional grade bike that is strong and has good quality parts buy this bike it’s a great value. I feel like it looks really good too. Mongoose built this for strength. Not a Walmart Mongoose for sure.
K**I
Solid deal if catching it when the price is right.
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.
B**N
best quality at this price range
Pros: best config you can get at this price range. Chromoly frame, fork and handlebar, sealed bearing for front and rear hub, freecoaster rear hub. (other brand like WTP, fly kink may cost you double for this config). Easy to assembly (just install the handlebar, padel, front wheel and seat). It come with a U brake and is suitable to install Gyro, but I took off the brake cos I run brakeless at park. Cons: Made in China by pacific bicycle, and 21 inch frame (suitable for 5'11 or above I guess).
J**N
Simple beauty for a grown person
So, one big thing to note with this bike is that the bolts on the wheels are not the most common kind. You won't be able to use the old-school type of pegs because the bolts go inward on the back. In other words, the wheels have a hole in them and the bolt needs to go through the wheel fork and peg and then into the wheel. I don't know why the wheels are threaded differently than each other, but if you plan to put pegs on this, it will involve a little more research than what I did. This is just a unique detail to note and consider. In no way does this reflect on this bike in and of itself. This bike is a beautiful work of simple design. I took off a couple of the stickers just because I love the look of the brushed gunmetal paint finish. The paint is so satiny and it really sets off the whole look of the bike with these infinity wheels. I am just an old-school grown man born in the late 70s who wants a bike that reminds me of what a bike used to be, I am not a vert ramp dude or anything like that. So, I love the single break and every effort made to design this bike for a minimal look. It is a little more heavy than I recall my childhood Huffy bike being, but I am too. What I love most with this bike is how deceptively long it is. You can have quite a bit longer arms and legs than mine (I'm average) and still do quite well with this design. My son is eight and this is clearly not a bike designed for his dimensions. My wife insisted I not get a kids bike and this my friends is certainly no kid's bike, however nostalgic it might make me feel.
S**E
Great bike
Super easy to put together. The green is a nice color. Fits my 13 year old perfectly. He’s almost 6 feet tall and it’s great!!
J**8
Pretty solid, maybe a little overpriced
Out of the box had no issues with assembly. During test rides it held up pretty well. The main issue I had was the chainring was bent. I noticed it after the second test ride. It caused tight spots in the chain and might lead to a failure if tightened too much or at the proper tension. During the rides the chain didn’t slip though. Other than that, maybe with a better chain and upgraded wheels,(also, the rear wheel doesn’t have as smooth a ride as premium versions of this type of bike) this bike could handle some stress put to it.
A**E
Good bike
Better than we thought! Our son loves it and rides it every day
L**R
Junk!
This bike was a complete disappointment! Everytime we turned around we had problems with it. Also definitely not designed for bmx activities!! Purchased as a gift for my son & turned into a nightmare!
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.
S**S
Gutes BMX, Bremskabelhalterung musste mit Locktite festgemacht werden. Ich habe es mit einem Mittelmotor aufgerüstet zum E-Bike und nen Gepäckträger dran gemacht zum EInkaufen, dazu ne 3 Gang und Schutzbleche. Sieht aus wie ne Mini Motorcross und Dampf Dampf Dampf
D**D
Yo! Shredmaster Dave here, droppin' rhymes on the L100 Legion. This beast ain't your average barney-basher. Full cromo frame feels bomber, grinds smoother than Matty's crannies. Sealed bearings boost spins, cranks handle hops like they got springs. Flyweight bars whip like a dream, pegs grind true – no sketchy snags. Brakes got bite, landings feel plush, weight's dialed for airtime crush. Don't sleep on this whip, riders – L100's legit, street cred guaranteed!
U**1
Very good begginer bmx for the price but i recommend the l 100 i dont buy the l 100 because it isn’t available for its real price in amazon.sa
L**E
My 12 year old grandson bought this in January this year with money he saved up himself. He’s been riding it for a month now and it has not been able to ride it for a week because the pedals don’t move anymore. He’s devastated and looks like we’ll have to take in somewhere that repairs bikes. I hope this doesn’t happen to anybody else cause it’s a high price to pay for one month of riding.
Trustpilot
2 weeks ago
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