The Mongoose Legion Series offers a full line of freestyle BMX bikes for riders of all ages and ability levels. The Legion L80 is the perfect bike for riders just getting started in BMX. With a mix of chromoly and hi-tensile steel tubing the L80 is ready to shred your local park, trails and streets!


  • Frame: 4130 Chromoly Front Triangle, BMX Freestyle Geometry with Integrated headset & Mid Bottom Bracket.
  • Fork: Hi-Tensile Steel, 1 1/8" Steerer Tube.
  • Crank: 3 Piece Tubular Chromoly, 25T Steel Sprocket.
  • Chain: KMC S1
  • Bottom Bracket: Mid Sealed Bearing.
  • Rims: 36 Hole Aluminum, Single Wall. Front Hub: 36 Hole Aluminum, Caged Bearing, 3/8" Axle.
  • Rear Hub: 36 Hole Aluminium, Sealed Cassette with 9T Driver, 14 mm Axle.
  • Spokes: Steel 14G.
  • Tyres: 20" x 2.3".
  • Pedals: Mongoose Nylon, 9/16".
  • Brakes: Aluminium U-Brake.
  • Handlebars: Mongoose Hi-Tensile Steel, 29" Wide x 9" Rise.
  • Stem: Mongoose, Threadless Top Load, 50 mm.
  • Headset: Threadless, Integrated 1-1/8”, Sealed Cartridge Bearings.
  • Seat Post: Pivotal, 250 mm, 25.4 mm.
  • Seat: Mongoose Pivotal.
  • Grips: Mongoose Mush XL.


  • Top Tube: 20.75".
  • Headtube Angle: 75°.
  • Seat Tube Angle: 71°.
  • Chainstay: 13.70".
  • Standover Height: 22.25".


Mongoose stands behind all of its products.

Your purchase includes the following warranty which is in lieu of all other express warranties. This warranty is extended only to the initial consumer purchaser. No warranty registration is required.


Steel frames are guaranteed against faulty materials and workmanship for as long as the initial consumer purchaser has the bicycle, subject to the condition of the warranty listed below. Aluminium and dual suspension frames are guaranteed against manufacturing defects for a period of 5 years. If frame failure should occur due to faulty materials or workmanship during the guarantee period, the frame will be replaced. For frame replacement under this Pacific Limited Warranty, contact us, stating the nature of the failure, model number, date received and the name of the store from which the bike was received, at the address given on this page.

Frame must be returned for inspection at customer’s expense. Please note: the fork is not part of the frame. A lifetime warranty on your frame does not guarantee that the product will last forever. The length of the useful life cycle will vary depending on the type of bike, riding conditions and care the bicycle receives. Competition, jumping, downhill racing, trick riding, trial riding, riding in severe conditions or climates, riding with heavy loads or any other non-standard use can substantially shorten the useful product life cycle. Any one or a combination of these conditions may result in an unpredictable failure that is not covered by this warranty.

All bicycles and frame sets should be periodically checked by an authorized dealer for indications of potential problems, inappropriate use or abuse. These are important safety checks and are very important to help prevent accidents, bodily injury to the rider and shortened useful product life cycle.


All other parts of the unit except Normal Wear Parts are warranted against defective materials and workmanship for a period of 1 year from the date of purchase by the initial consumer purchaser, subject to the Terms and Conditions of the warranty listed below.

If failure of any part should occur due to faulty materials or workmanship during the warranty period, the part will be replaced. All warranty claims must be submitted to the address below and must be shipped prepaid and accompanied by proof of purchase. Any other warranty claims not included in this statement are void. This especially includes installation, assembly, and disassembly costs. This warranty does not cover paint damage, rust, or any modifications made to the bicycle.

Normal Wear Parts are defined as grips, tires, tubes, cables, brake shoes and saddle covering. These parts are warranted to be free from defects in material and workmanship as delivered with the product. Any claim for repair or replacement of Normal Wear Parts (grips, tubes, tires, cables, brake shoes and saddle covering) and missing parts must be made within thirty (30) days of the date of purchase.

The warranty does not cover normal wear and tear, improper assembly or maintenance, or installation of parts or accessories not originally intended or compatible with the bicycle as sold. The warranty does not apply to damage or failure due to accident, abuse, misuse, neglect, or theft. Claims involving these issues will not be honored.

Conditions Of Warranty.

1. Your bicycle has been designed for general transportation and recreational use, but has not been designed to withstand abuse associated with stunting and jumping. This warranty ceases when you rent, sell, or give away the bicycle, ride with more than one person, or use the bicycle for stunting or jumping.
2. This warranty does not cover ordinary wear and tear or anything you break accidentally or deliberately.
3. It is the responsibility of the individual consumer purchaser to assure that all parts included in the factory-sealed carton are properly installed, all functional parts are initially adjusted properly, and subsequent normal maintenance services and adjustments necessary to keep the bicycle in good operating condition are properly made. This warranty does not apply to damage due to improper installation of parts, installation of any kind of power plant or internal combustion engine, modification or alteration of the brakes, drive train, or frame in any way, or failure to properly maintain or adjust the bicycle. NOTICE: Bicycle specifications subject to change without notice.

For further information please visit

Brand Mongoose

All Mongoose bicycles are available for in store pick up only. Due to the terms of our Mongoose dealer contract we cannot ship any of their bikes.

A free first service is provided with every Mongoose bicycle sold within 90 days of the purchase date.

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