Search  for anything...
Mongoose

Mongoose Legion Freestyle BMX Bike for Advanced-Level or Professional Riders, Adult Men Women, 4130 Chromoly Frame, and 20-Inch Wheels

    • Based on 643 reviews
Condition: New
Checking for product changes
$629.99 Why this price?
Save $70.00 was $699.99

Buy Now, Pay Later

As low as / mo
  • – Up to 36-month term with PayTomorrow
  • – 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

30-day easy returns

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 Friday, May 17
Order within 23 hours and 55 minutes
Available payment plans shown during checkout

Style: L500


Size: 20-Inch Wheels


Color: Silver


Features

  • L500 is a fully park, street or dirt worthy freestyle BMX bike, beginner level curb jumps all the way up to advanced aerial tricks on a quarter pipe, Suggested rider height is 5'8" and up.
  • Extreme durability, features a Mongoose full 4130 Chromoly frame with removable brake mounts and mid BB shell, featuring a 21 top tube length
  • Drivetrain features 175 mm two-piece tubular chromo hollow spindle cranks with a 25T aluminum chain ring and mid sealed bearing bottom bracket.
  • Wheelset features 20 x 2.4 tires mounted on wide aluminum double wall 36H rims with 3/8 female axle front hub and 9T cog sealed bearing free coaster rear hub.
  • Aluminum U-brake and brake levers provide precision speed control, while the 4130 chromoly handlebar and fork are joined by a 50 mm stem and thread less sealed integrated headset for maximum steering performance.

Bike Type: BMX Bike


Age Range (Description): Big Kid


Brand: Mongoose


Number of Speeds: 1


Color: Silver


Wheel Size: 20 Inches


Frame Material: Chromoly Steel


Suspension Type: Rigid


Special Feature: freestyle, Aluminum Frame, BMX


Included Components: Mongoose Legion L500 Freestyle BMX Bike


Bike Type: ‎BMX Bike


Age Range (Description): ‎Big Kid


Brand: ‎Mongoose


Number of Speeds: ‎1


Color: ‎Silver


Wheel Size: ‎20 Inches


Frame Material: ‎Chromoly Steel


Suspension Type: ‎Rigid


Special Feature: ‎freestyle, Aluminum Frame, BMX


Included Components: ‎Mongoose Legion L500 Freestyle BMX Bike


Size: ‎20-Inch Wheels


Brake Style: ‎U Brake


Specific Uses For Product: ‎Trail


Item Weight: ‎11 Kilograms


Style: ‎L500


Model Name: ‎Legion BMX


Wheel Material: ‎Aluminum


Year: ‎2020


Maximum Weight Recommendation: ‎72.75 Pounds


Skill Level: ‎Intermediate


Item Package Dimensions L x W x H: ‎48.6 x 23.5 x 10.3 inches


Package Weight: ‎16.15 Kilograms


Brand Name: ‎Mongoose


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


Material: ‎Aluminum


Suggested Users: ‎unisex-adult


Number of Items: ‎1


Manufacturer: ‎Pacific Cycle, Inc.


Part Number: ‎M41100U10OS-PC


Date First Available: August 6, 2019


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, May 17

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.

Similar Products

Top Amazon Reviews

    • Solid deal if catching it when the price is right.
Style: L100 Size: 20-Inch Wheels Color: Blue
Review Image by Kei Kei
Review Image by Kei Kei
Review Image by Kei Kei
Review Image by Kei Kei
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. ... show more
Reviewed in the United States on February 24, 2023 by Kei Kei
    • nice bike
Style: L100 Size: 20-Inch Wheels Color: Blue
i got it at $250 and at that price point for 4130 its a steal
Reviewed in the United States on March 1, 2024 by Martin
    • pound for pound - best beginner BMX ???
Style: L100 Size: 20-Inch Wheels Color: Grey/Black
first of all - i got this bike for an "steal" open box - $320.00 prime - so my review is kinda skewed - but indeed if you can get this bike for <$500 or <$400 - i would submit it is the best pound for pound - yes i hear you - they sell mongoose at walmart (no doubt) - but look at the specs - chromolly frame, forks, and handlbars, double walled rims, integrated head bearings, pivot seat try to find this on any other "branded" bike - PK Ripper,GT, WTP, Cult, Subrosa, and Kink (on a side note the Kink Whip) is about as close as one can come - but the 2022 models are gone and now the 2023 models are $529.00 again - my review is a bit skewed - as frankly i got an open box steal - indeed box was damaged - but bike was 100% new - look i aint no serious rider - just enjoying my inner 12 year old on side note (being 5-8) - for me the seat post is a wee low at 270 mm - so i ordered a 320mm to replace it but again no major tricks here - just street cruising - so each to their own... cheers UPDATE !! - price today 8-23-22 ($382.00) - not prime - but indeed pick this steal up !!!! again pound for pound - compare the specs to any other BMX on Amazon or and other BMX bikes - GT, Redline, WTP, Subrosa, Cult - you simply cannot do any better !!! ... show more
Reviewed in the United States on August 15, 2022 by rube
    • It's my bike, and it's very fast!
Style: L100 Size: 20-Inch Wheels Color: Grey/Black
I bought this L100 last fall/winter with a "used, like new condition" and couldn't be happier with it. I ride it to and from work every single day. I have put it through some rough riding, jumping everything i can everywhere I go. This is my first all chromally steel bike, and I can't imagine ever getting anything but that now. I can forsee it lasting a very long time with proper maintenance and care. Just wish it had a front brake and a slightly smaller back tire, as these tires do make it harder to accelerate do to the amount of grip and friction they have. 2.4" wide tires are much much different than anything else I've ever had. I think 2.3" would be perfect on the back. Have some good lithium grease ready for the bearings on the front fork when you install. This bike has been my best friend for the past 8 months or so, and besides just regular maintenance and tightening the crank and chain once a month, and a couple flat tires repaired, it had been very reliable and indestructible as far as what I personally put it through. If you've never had an all chromally (frame, forks, handlebars, crank arms) you are in for a real treat. I would hands down buy this bike again. Either that or piece together and build my own. ... show more
Reviewed in the United States on July 27, 2021 by OhOkDave
    • Worst experience ever!!
Style: L100 Size: 20-Inch Wheels Color: Grey/Black
Review Image by Elias and Jalicia Armor Elias and Jalicia Armor
Review Image by Elias and Jalicia Armor Elias and Jalicia Armor
I’m not sure if this is for one or the other or maybe both but this has been the worst experience of my life!! Paid almost 400 and waited to get the bike, only for the front wheel to be defective. After reaching out to the manufacturer I was to they don’t have the wheel in stock and that I have to call Adrien to find the wheel pay for it and submit for a reimbursement. After 4-5 calls I’m told that the wheel in a house wheel and they can’t get it but, I sure can buy one of their wheels for another 75 to 300. When I call Amazon back they want me to have the original packaging the bike can in to ship it back or I can take a 75 credit for the defective item and keep the bike that doesn’t work but, 75 won’t fix it. Over all the bike would be awesome if it worked but I can’t attest to that because right now it’s a 400 decoration in my garage. This was an absolute nightmare and I’ll never do it again! ... show more
Reviewed in the United States on April 23, 2024 by Elias and Jalicia Armor Elias and Jalicia Armor

Can't find a product?

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