--- product_id: 72239714 title: "Mongoose Legion Kids Freestyle BMX Bike, Intermediate Rider, Boys and Girls Bikes, 20-Inch Wheels, Hi-Ten Steel Frame, Micro Drive 25x9T BMX Gearing" brand: "mongoose" price: "€ 1952.50" currency: EUR in_stock: true reviews_count: 13 url: https://www.desertcart.hr/products/72239714-mongoose-legion-kids-freestyle-bmx-bike-intermediate-rider-boys-girls store_origin: HR region: Croatia --- # 20-inch durable wheels 25x9T BMX gearing Hi-Ten steel frame Mongoose Legion Kids Freestyle BMX Bike, Intermediate Rider, Boys and Girls Bikes, 20-Inch Wheels, Hi-Ten Steel Frame, Micro Drive 25x9T BMX Gearing **Brand:** mongoose **Price:** € 1952.50 **Availability:** ✅ In Stock ## Summary > 🚀 Own the streets and parks with the Mongoose Legion L20 – where style meets unstoppable performance! ## Quick Answers - **What is this?** Mongoose Legion Kids Freestyle BMX Bike, Intermediate Rider, Boys and Girls Bikes, 20-Inch Wheels, Hi-Ten Steel Frame, Micro Drive 25x9T BMX Gearing by mongoose - **How much does it cost?** € 1952.50 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/72239714-mongoose-legion-kids-freestyle-bmx-bike-intermediate-rider-boys-girls) ## Best For - mongoose enthusiasts ## Why This Product - Trusted mongoose brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Grip & Stability:** Wide 20” x 2.3” tires on aluminum 36H rims for ultimate traction on any surface. - • **Precision Control:** Aluminum U-brake and brake levers for sharp, responsive stopping power. - • **Smooth Power Transfer:** One-piece forged steel cranks with 25T alloy chainring for effortless pedaling. - • **Street-Ready Durability:** Hi-Ten steel frame built to withstand every trick and tumble. - • **Confidence-Inspiring Fit:** Designed for riders 4’8” to 5’4” with a 20.25” top tube for perfect control. ## Overview The Mongoose Legion L20 is a freestyle BMX bike designed for intermediate riders aged roughly 4’8” to 5’4”. Featuring a durable Hi-Ten steel frame, 20-inch wheels with wide BMX tires, and a high-performance 25x9T drivetrain, it delivers reliable power and control. Precision aluminum U-brakes and a responsive handlebar setup ensure sharp handling, making it perfect for street, park, and dirt riding. Backed by a 5-year frame warranty, this bike is built to last and ready to elevate any young rider’s BMX experience. ## 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 L20 was designed to be a fully park, street and dirt worthy BMX bike. The Legion L20 features a Hi-Ten steel frame (20.25” top tube), tapered headtube, and removable brake mounts. The L20 Hi-Ten steel 8” rise handlebar and 48mm stem are designed for precision riding, while the wide aluminum single wall 36H rims and 2.3” BMX tires offer grip and durability. The 25x9T gearing with one-piece tubular chromoly 170mm hollow spindle cranks and American loose ball bottom bracket offer a clean, reliable drivetrains. An alloy U-brake with alloy brake levers provide speed control, while the Hi-Ten Steel BMX fork with 1-1/8" threadless steerer and taper leg 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. ## Features - L20 is a stylish freestyle BMX bike that offers everything a beginning rider needs to hit the streets and pop off curbs, Suggested rider height is 4’8”-5’4” - Built to last with its Hi-Ten steel frame, removable brake mounts, and a top tube length of 20.25 inches - Boasts a high-performance drivetrain equipped with 170mm one-piece forged steel cranks, a 25T alloy chainring, and an American loose ball bottom bracket - Wheelset is equipped with 20” x 2.3” tires mounted on aluminum single wall 36H rims with 3/8” female axle front hub and 9T cog sealed bearing cassette rear hub - Aluminum U-brake and brake levers provide precision speed control, while the Hi-Ten steel handlebar and fork are joined by a 50mm stem and threadless sealed integrated headset for maximum steering performance ## Technical Specifications | Specification | Value | |---------------|-------| | Additional Features | Aluminum Frame, BMX, freestyle | | Age Range Description | Big Kid | | Asin | B07G1HWG9P | | Best Sellers Rank | #58,784 in Sports & Outdoors (See Top 100 in Sports & Outdoors) #140 in Kids' Bicycles | | Bike Type | BMX Bike | | Brake Style | U Brake | | Brand Name | Mongoose | | Color | Red | | Customer Reviews | 4.4 4.4 out of 5 stars (7,306) 4.4 out of 5 stars | | Frame Material Type | Alloy Steel | | Global Trade Identification Number | 00038675158115 | | Included Components | Bicycle | | Item Type Name | BMX Freestyle Bike | | Item Weight | 34.4 pounds | | Manufacturer | Pacific Cycle, Inc. | | Minimum User Height | 48 inches | | Model Name | Legion Intermediate | | Model Number | M41509M50OS-PC | | Number Of Handles | 1 | | Number Of Speeds | 1 | | Power Source | Pedal power (human energy transferred through a drivetrain) | | Size | 20-Inch Wheels/L20 | | Specific Uses For Product | Trail | | Style Name | L20 | | Suspension Type | Rigid | | Upc | 038675158115 | | Warranty Description | limited lifetime | | Warranty Type | Limited | | Wheel Material | Aluminum | | Wheel Size | 20 inches | ## Product Details - **Bike Type:** BMX Bike - **Age Range (Description):** Big Kid - **Brand:** Mongoose - **Number of Speeds:** 1 - **Color:** Red - **Wheel Size:** 20 Inches - **Frame Material:** Alloy Steel - **Suspension Type:** Rigid - **Special Feature:** Aluminum Frame, BMX, freestyle - **Included Components:** Bicycle ## Images ![Mongoose Legion Kids Freestyle BMX Bike, Intermediate Rider, Boys and Girls Bikes, 20-Inch Wheels, Hi-Ten Steel Frame, Micro Drive 25x9T BMX Gearing - Image 1](https://m.media-amazon.com/images/I/81xidW0IfZL.jpg) ## Available Options This product comes in different **Color, Size** options. ## Questions & Answers **Q: Are the bike pegs removable? My son wants to use it as a dirt jumper.** A: The bike we received didn't have the pegs assembled. As a matter of fact the pegs aren't that good. Slippery for shoes. **Q: how much does the bike weigh in total** A: Hi there! This model is roughly 32 lbs. when fully assembled. Thanks for reaching out! **Q: My son is 7yr old and is 4'3" will the L20 fit him?** A: For the most part, yes, it'll fit him. For those wanting to be technical no not all BMX bikes are a universal fit for all ages, but that's, in part at least, why there's an adjustable seat post to them, quite simply. Also, a quality BMX bike should be able to grow with a kid and accommodate his size as he grows. It might seem as simple as adjusting the seat post, but most of the youths tend to start off riding in a sitting position and grow to ride standing up more often than not, so adjusting the seat post height really becomes a non-issue soon enough. But another simple method is, have the kid straddle the bike. If the top tube is bumping his crotch, the bike is too big for him and vice versa. **Q: Is the legion L20 a good fit for a teenager?** A: For an L20 model I would suggest a rider 4' 8" – 5' 4" in height. That can be a wide range of ages that's generally 8 and up. Thank you, Nicole ## Customer Reviews ### ⭐⭐⭐⭐⭐ Extremely Easy to Assemble. Bike Looks Amazing. M8x1.25 Tap May be Needed. *by on Reviewed in the United States December 30, 2020* 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. ### ⭐⭐⭐⭐⭐ Great bike *by on Reviewed in the United States May 29, 2026* My son, absolutely loved this bike when he received it, and it was put together, the bike was perfect for his size. It rode very smooth and I feel like I got what I paid for unfortunately after moving into our new place, the bike was stolen from our backyard ### ⭐⭐⭐⭐⭐ Good bike for the money *by on Reviewed in the United States December 21, 2020* All you need are some tools, a brain, some patience and reasonable expectations for this to be put together and on the road.If you have half a brain and basic tools, you’re going to be able to put this together without even looking at the instructions. This will come in a box, front tire packaged off.It comes with no tools, everything zip tied so it could remain intact on the long trip from CHIIIINA to the US. Packaging is solid. There are several thick zip ties to cut to break everything loose.You’re going to need:Metric hex toolsA 15 and 18 mm socket for axels15mm wrench or socket to tighten handlebar alignmentScissors or utility knife for zip tiesPhillips screwdriver (for the reflectors only)You’ll need an extension bar to remove the nuts from the axels to install the pegs on front and back. Will take you about 60 seconds to do this.Front handlebars install with hex keys. Honestly not sure how anybody could have problems with this. It’s four bolts. Secure them, and you’re good. But man, some reviewers couldn’t figure this out.Install the seat with another hex socket.Put on the reflectors, hook up the brake, fill the tires with air, and you’re riding.Btw, the factory purposefully ships tires with less air than you’ll need for your benefit. Any tire sitting for an extended period will last longer if not fully inflated.Hooking up the brake is a bit of a pain in the A, as you won’t have enough slack in the front to properly attach the cable unless you briefly disconnect the rear brakes. Once you pull the cable through in the front to attach, reattach the rear. Took me a minute to figure this out.The front break setup is such that you can spin the handlebars around to 1) look cool, and 2) not have the brake line get wound around the front of the bike.The bike is good, solid and worth the money. Assembly, with any mechanical skill (even entry level mechanical skill) will take 20 minutes.Also, warning: you’re buying a $200 bike. It will last like a $200 bike. Many people on here complain about the quality. This isn’t a $1000 bike. Don’t pretend it is. Take care of it, don’t beat it to death and you’ll be good.If this was at all helpful, please hit the button. ## Frequently Bought Together - Mongoose Legion Kids Freestyle BMX Bike, Intermediate Rider, Boys and Girls Bikes, 20-Inch Wheels, Hi-Ten Steel Frame, Micro Drive 25x9T BMX Gearing - Zelerdo 2 Pairs Aluminum Alloy Bike Pegs for Mountain Bike Cycling Rear Stunt Pegs Fit 3/8 inch Axles - Mongoose Legion Kids Freestyle Sidewalk BMX Bike, Beginner Riders, Boys and Girls, 16-20-inch Wheels, Hi-Ten Steel Frame, Micro Drive BMX Gearing --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.hr/products/72239714-mongoose-legion-kids-freestyle-bmx-bike-intermediate-rider-boys-girls](https://www.desertcart.hr/products/72239714-mongoose-legion-kids-freestyle-bmx-bike-intermediate-rider-boys-girls) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-08-14*