Mongoose Legion L20 BMX Bike – Green

$409.95 $449.95
No Delivery Available

With the Legion Series, Mongoose offers a full line of freestyle BMX bikes for riders of all ages and ability levels. The Legion L100 was designed to be a fully park, street and dirt worthy BMX bike that offers everything a rider could need from beginner level curb jumps all the way up to advanced aerial tricks on a quarterpipe!




Wheel Size 20"
Frame Material Steel
Fork Material Steel
Brake Type U-Brake
Bottom Bracket American loose ball
Brakes Alloy U-Brake
Brake Levers Alloy
Cassette Single-speed, 9T cassette driver
Chain KMC S1
Crankset CrMo Tubular 3-piece, 25T steel chainring
Fork Hi-Ten steel
Frame Hi-Ten steel
Grips Mongoose, Hi-Ten steel, 26 in width, 7 in rise
Handlebar Mongoose, threadless front load, 48 mm
Headset Steel, 250 mm, 25.4 mm
Hubs Aluminum single wall, 24 mm ID, 28H
Pedals Mongoose, nylon
Rims 14G, steel, black
Saddle F: Steel, ball bearing, 3/8 in axle, 28H R: Steel, ball bearing, 3/8 in axle 28H
Seatpost Mongoose, steel rails
Stem Threadless, 1-1/8" external, retainer bearing
Spokes 20 in x 2.3 in, wire bead
Tyres 1-piece, forged steel, 25T steel chainring
Kids Bike Sizing 20 Inch


When you buy a new bike at

Unlimited Free Service

All new bicycles purchased come with our exclusive 1 YEAR UNLIMITED FREE SERVICE. We recommend you return your bicycle for its first service 6-8 weeks of riding (approx. 200km). Our repair department is constantly busy servicing bicycles, so it's recommened that you call us a few days before you would like your bicycle serviced, and book in for our same day servicing.

Test Your Future Bike
Bicycle Size Guide
Bike Freight Charges

This is a door to door service but depending on the delivery location, the total freight charge may additional charges per bicycle. You will be notified before we process your order if an additional freight charge applies to your order. This normally only applies to remote areas, outside of major cities.

Online Bicycles Orders

Please allow 3-5* working days for your bicycle to be delivered from time of payment being received. We take extra time and care in assembling your bicycle before it is packed and ready to send. Most online bicycle and department stores simply send the bicycle to you without any adjustments. We make sure the gears, brakes, wheels and all other components have been adjusted correctly first. All you need to do is fit the pedals, front wheel and stem. Easy to follow assembly instructions are included.

* Subject to stock location

Store Location

Monday to Friday: 9am - 5:30pm
Saturday: 9am - 5pm
Sunday: 11am - 4pm