Mongoose Legion L20 BMX Bike (White)

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Mongoose Legion L20 BMX Bike (White)

The Mongoose Legion L20 BMX is a 20 inch BMX to help you enter the world of freestyle in style. The Legion is a great first bike, with a range of reliable, safe and durable spec. The L20 is built with a tough Hi-Ten steel frame, forks and 8 inch handlebars which are light enough so that you can ride in control. The saddle and grips are comfortable to ensure that you can enjoy every ride without issue and the aluminium U-brake adds safe control this speed machine so that you can ride with confidence. The Mongoose Legion L20 BMX bike offers everything a beginner could ask for in a BMX, ready to hit the streets and dominate from day dot.


  • Mongoose® Hi-Ten steel frame and fork; 8” handlebar; 20.25″ Top-Tube length
  • 3-piece chromoly tubular crank; 8-spline spindle
  • Aluminium single wall 36H rims; 2.3” tyres

Mongoose Kids Bikes

The Mongoose brand is a well known name to anyone who loves BMX. Many prefer to purchase these types of bicycles because they are affordable, feature high quality construction, and come with various features designed to improve the cyclist’s performance.  Mongoose bikes can be found in a variety of options at PMC.  These bikes are all about maximum fun and durability, this is exactly why they are such a popular kids bike.

BMX Mongoose Bikes have 40 years of experience catering to the needs of kids

The most popular Mongoose BMX bikes can be found on our site. Many of these kids bikes have been specifically designed for the younger customers. The kids bike is built using lightweight aluminum for the frame, which helps to save weight since the entire frame is made of a lighter material. The result is a faster, lighter, and more maneuverable kids bike that is easy for beginners to use. If you are looking for a bike that is strong and yet lightweight, the Mongoose Bike range are a great option.

Feel free to explore our full range of Mongoose Kids Scooters.

Please note: Images are for illustrative purposes only, actual specification may differ. 

Frame Specs
  • Sizes | 20 inch
  • Colors | White
  • Frame | Hi-Ten steel
  • Fork | Hi-Ten steel
  • Handlebar | Mongoose, Hi-Ten steel, 26 in width, 7 in rise
  • Stem | Mongoose, threadless front load, 48 mm
  • Seatpost | Steel, 250 mm, 25.4 mm
  • Saddle | Mongoose, steel rails
  • Pedals | Mongoose, nylon
  • Brakes | Alloy U-Brake
  • Brake Levers | Alloy
  • Cassette | Single-speed, 9T cassette driver
  • Crankset | 1-piece, forged steel, 25T steel chainring
  • Bottom Bracket | American loose ball
  • Crank | KMC S1
  • Rims | Aluminum single wall, 24 mm ID, 28H
  • Tyres | 20 in x 2.3 in, wire bead
PMC is a specialist road store with the highest bike build standards and customer service record in the industry. Please contact any of our friendly staff if you are in need of any expert advice or answers to any queries you may have, or to take advantage of a test ride and experience the PMC advantage.
Our bike fitting service is done at time of purchase but is not limited to this only. We offer an on-going free bike fitting service within the first year to accommodate possible changes in your fitness, flexibility and performance. We can also assess current riding techniques such as pedalling efficiency, correct posture etc. and offer any advice on an individual basis in order to advance your cycling comfort and performance. This includes free head stem swap overs at any time within the first year. Our opinion is that the perfect bike fit is something that grows with your riding and can be fluid as you progress or adapt to your riding level. Every bike fit is individual to a riders certain requirements and correctly fitted, can turn a good bike riding experience into a great one. We also offer a free follow up service and highly recommend this is done within the first 6 months or the 500-1000km mark. This is the most important service a bike can get, with it getting the full treatment to ensure everything has bedded in well, ensuring your ride is maintained and performing at it's optimum level. Our service goes over and above the normal adjustments required with any issue arising being rectified free of charge unless due to normal wear and tear.