--- product_id: 729175994 title: "Mongoose Legion Freestyle BMX Bicycle Line for Kids, Youth, Beginner to Advanced, 20\" Wheels, Steel Frame, Multicolor" brand: "mongoose" price: "¥184576" currency: JPY in_stock: false reviews_count: 5 url: https://www.desertcart.jp/products/729175994-mongoose-legion-freestyle-bmx-bicycle-line-for-kids-youth-beginner store_origin: JP region: Japan --- # 20" durable wheels 170mm forged steel crank Hi-Ten steel frame Mongoose Legion Freestyle BMX Bicycle Line for Kids, Youth, Beginner to Advanced, 20" Wheels, Steel Frame, Multicolor **Brand:** mongoose **Price:** ¥184576 **Availability:** ❌ Out of Stock ## Summary > 🚀 Own the streets with the Mongoose Legion L20 – where style meets unstoppable performance! ## Quick Answers - **What is this?** Mongoose Legion Freestyle BMX Bicycle Line for Kids, Youth, Beginner to Advanced, 20" Wheels, Steel Frame, Multicolor by mongoose - **How much does it cost?** ¥184576 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/729175994-mongoose-legion-freestyle-bmx-bicycle-line-for-kids-youth-beginner) ## 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 - • **Ready to Ride:** Comes fully assembled with a 5-year frame warranty—jump straight into the action. - • **Grip & Stability:** 20" x 2.3" BMX tires on aluminum 36H rims for ultimate traction on any surface. - • **Precision Control:** Aluminum U-brakes and levers deliver smooth, reliable stopping power. - • **Performance Drivetrain:** 170mm one-piece forged steel crank with 25T alloy chainring for efficient pedaling. - • **Street-Ready Durability:** Hi-Ten steel frame and forks built to withstand every trick and bump. ## Overview The Mongoose Legion L20 is a 20-inch freestyle BMX bike designed for kids and youth riders between 4'8" and 5'4". Featuring a durable Hi-Ten steel frame, precision aluminum U-brakes, and a high-performance 170mm forged steel crank drivetrain, this bike is built for street, park, and dirt riding. With wide 2.3" tires on sturdy aluminum rims and a removable brake mount, it offers both grip and customization. Ready to ride out of the box and backed by a 5-year limited frame warranty, the Legion L20 is the perfect BMX for beginner to intermediate riders craving style and control. ## Description Mangoose has been in the mud, the trail, and the ramp for 45 years. In the Legion series, Mongoose offers a full line of freestyle BMX bikes for riders of all ages and ability levels. The Legion L20 is designed as a BMX bike worth in the park, street, and dirt. The Legion L20 features a Hi-Ten steel frame (20.25" top tube), a tapered head tube, and a removable brake mount. Made from L20 Hi-Ten steel, the 8" rise handlebar and 48mm stem are designed for precise riding, and the wide aluminum single wall 36H rims and 2.3" BMX tires provide grip and durability. The 25x9T gear features a one-piece tubular chromoly 170mm hollow spindle crank and American looseball bottom bracket for a clean, reliable drivetrain. Alloy U brake with alloy brake lever provides speed control, Hi-Ten steel BMX fork with 1-1/8" threadless steerer and tapered legs maximizes performance. This bike comes ready to assemble and comes with a 5-year limited warranty and a 1-year limited warranty on the frame ## Features - The L20 is a stylish freestyle BMX bike that gives beginner riders everything they need to hit the streets and hit the curves. Recommended rider height is 4'8"-5'4" - Hi-Ten steel frame, removable brake mount, and top tube length is 20.25" for long lasting use - Boasts a high-performance drivetrain with a 170mm one-piece forged steel crank, 25T alloy chainring and American Loose Ball bottom bracket - Wheel set comes with 20" x 2.3" tires attached to aluminum single wall 36H rims with 3/8" female axle front hub and 9T cog seal bearing cassette rear hub - Aluminum U-brake and brake levers provide precise speed control, Hi-Ten steel handlebars and forks are combined with 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 | B07W5L32P9 | | Bicycle Drivetrain Type | Chain Drive | | Bike Type | BMX Bike | | Brake Style | U Brake | | Brand Name | Mongoose | | Color | blue | | Customer Reviews | 4.5 4.5 out of 5 stars (347) 4.5 out of 5 stars | | Frame Material Type | High Tensile Steel | | Global Trade Identification Number | 00038675187177 | | Included Components | Mongoose Legion L20 Freestyle BMX Bike | | Is Assembly Required | No | | Is Autographed | No | | Item Type Name | BMX Freestyle Bike | | Item Weight | 12 Kilograms | | Manufacturer | Pacific Cycle, Inc. | | Maximum Weight Recommendation | 113.4 kg | | Minimum User Height | 56 Inches | | Model Name | Legion Intermediate | | Model Number | M41800U10OS-PC | | Model Year | 2020 | | Number Of Handles | 1 | | Number Of Speeds | 1 | | Power Source | Pedal power (human energy transmitted through drivetrain) | | Seat Material | PU, Vinyl, Plastic | | Size | 20-Inch Wheels/L20 | | Skill Level | Intermediate | | Specific Uses For Product | Trail | | Style Name | L20 | | Suspension Type | Rigid | | Upc | 038675187177 | | Warranty Type | Limited | | Wheel Material | Aluminum | | Wheel Size | 20 Inches | ## Product Details - **Age Range (Description):** Big Kid - **Bike Type:** BMX Bike - **Brand:** Mongoose - **Color:** blue - **Number of Speeds:** 1 ## Images ![Mongoose Legion Freestyle BMX Bicycle Line for Kids, Youth, Beginner to Advanced, 20" Wheels, Steel Frame, Multicolor - Image 1](https://m.media-amazon.com/images/I/71n8eMXVgML.jpg) ![Mongoose Legion Freestyle BMX Bicycle Line for Kids, Youth, Beginner to Advanced, 20" Wheels, Steel Frame, Multicolor - Image 2](https://m.media-amazon.com/images/I/7104vNsT9jL.jpg) ![Mongoose Legion Freestyle BMX Bicycle Line for Kids, Youth, Beginner to Advanced, 20" Wheels, Steel Frame, Multicolor - Image 3](https://m.media-amazon.com/images/I/61l3PCXd5kL.jpg) ![Mongoose Legion Freestyle BMX Bicycle Line for Kids, Youth, Beginner to Advanced, 20" Wheels, Steel Frame, Multicolor - Image 4](https://m.media-amazon.com/images/I/71AmyYF5thL.jpg) ![Mongoose Legion Freestyle BMX Bicycle Line for Kids, Youth, Beginner to Advanced, 20" Wheels, Steel Frame, Multicolor - Image 5](https://m.media-amazon.com/images/I/71vD4WZApBL.jpg) ## Available Options This product comes in different **Color, Style** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Good quality and nice look *by on Reviewed in Canada May 18, 2021* My son likes it very much, every day he rides it to school. Thanks ### ⭐⭐⭐⭐⭐ rapport qualité/prix incroyable *by on Reviewed in Canada October 20, 2020* Je suis agréablement surpris du rapport qualité/prix. Je recommande ### ⭐⭐⭐⭐⭐ Muy ligera *by on Reviewed in Mexico August 13, 2023* Excelente para hacer trucos ## 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 Freestyle BMX Bike for Advanced-Level or Professional Riders, Adult Men Women, 4130 Chromoly Frame, and 20-Inch Wheels --- ## 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.jp/products/729175994-mongoose-legion-freestyle-bmx-bicycle-line-for-kids-youth-beginner](https://www.desertcart.jp/products/729175994-mongoose-legion-freestyle-bmx-bicycle-line-for-kids-youth-beginner) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-10-14*