Mongoose Legion L16

For almost 40 years, Mongoose has been in the dirt, on the trails, and off the ramps. Founded in 1974 in a Southern California garage, Mongoose has always been an aggressive brand with products that push the limits of what a rider can do. Designed for professional level performance, the Mongoose Legion Mag Freestyle BMX Bike has all the strength and style you need in the bike park. The premium Mongoose Hi Ten Steel BMX frame and fork features low stance geometry to offer a durable, responsive ride with alloy rear U brakes for secure stops.


The Legion series of bikes offers everything a BMX rider could need from your first true BMX-style bike. The Legion L16 gives littler kids a perfect feel for what BMX is all about. Small BMX bikes have never looked better!

The foundation of the Legion L16 is a Hi-Ten steel frame (15.3” top tube). The L16's Hi-Ten steel 6.5” rise handlebar and 40mm stem are designed for precision riding, while the aluminum single wall 28H rims and 2.3” BMX tires offer grip and durability. The 25x9T gearing with 1-piece forged steel 130mm crank and American loose ball bottom bracket offer a clean, reliable drivetrain.

Mongoose Legion L16 Freestyle BMX Sidewalk Bike for Kids

Hi-Ten Steel Frame

The L16 features a durable Hi-Ten Steel frame with a 15.3 inch top tube length. Suggested rider height is 3’6” and smaller.

Drivetrain and Chainring

The L16’s drivetrain features a 130mm 1-piece crank with a 25T alloy chainring and American loose ball bearing bottom bracket.

Wheelset and Hubs

The wheelset features 16 inch x 2.3 inch tires mounted on aluminum single wall 28H rims with 3/8 inch female axle front hub and 9T cog sealed bearing cassette rear hub.

Handlebars and Stem

Aluminum U-brake provides precision speed control, while the Hi-Ten steel handlebar and fork are joined by a 40mm stem for maximum steering performance.