Mongoose Legion L100 BMX Bike

Regular price $458.49 $382.07 Out of Stock
Add to Wishlist
Order In For Express Shipping Options!
  • If you’re an old school guy wanting to dabble in some modern riding, or a young gun wanting something to rip down the local park - the Legion L100 with 100% 4130 frame, fork and bar is perfect for you. The L100 has the highest spec components and it is also the largest bike in the Legion series with a 21" toptube and 8.75" bar rise. It uses a full Chromoly frame, bar, crank and fork, double walled rims and sealed bearings throughout to make it as durable and lightweight as possible. The brake hardware is removable if you wish to go brakeless.

  • Seen this cheaper elsewhere? We price match any legitimate competitor! For a price match to be accepted, the item has to be identical and be in stock and available for purchase at our competitor. We will notify you by email of the decision when reviewed within 24hours but usually much sooner

    Create price match request

    • Standard Shipping From $13.95
    • Standard Delivery From 2-8 Working Days (Canada & Mexico)
    • Delivery From 2-5 Working Days (South America)
    • 90 Day Returns
    • 100% Rider-owned and Run

90 Day Returns

Award Winning BMX Shop

100% Secure Shopping

Trustpilot rate US excellent

Product Specs
  1. FRAME MATERIAL: Full 4130 Chromoly
  2. WHEEL SIZE: 20"
  3. TOP TUBE LENGTH: 21"
  4. CHAIN STAY LENGTH: 13.7"
  5. HEADTUBE ANGLE: 75°
  6. SEAT TUBE ANGLE: 71°
  7. FORKS: 4130 chromoly, 1-1/8" threadless steerer, tapered legs
  8. BARS: Mongoose, 4130 chromoly, 8.75"
  9. STEM: Mongoose, top load, 50 mm ext.
  10. HEADSET: threadless sealed integrated 1-1/8"
  11. BRAKE MOUNTS: Removable
  12. BRAKES: Aluminum U-brake
  13. FRONT HUB: Alloy, 3/8" female axle with bolt; 36H
  14. FRONT RIM: aluminum, double wall, 36H
  15. REAR HUB: 36H, 9T Cassette, 14 mm axle, sealed bearing, AL shell
  16. REAR RIM: aluminum, double wall, 36H
  17. TYRES: 20x2.40" Multi-Surface
  18. SPROCKET: 25T Steel Sprocket
  19. CRANKS: 2-Piece Chromoly
  20. BB: Mid sealed bearing 8-spline spindle
  21. PEDALS: Mongoose Resin Platform
  22. SEAT: Mongoose Pivotal
  23. GEARING: 25/9
  24. WEIGHT: TBC

Product Highlights
  • Longer top tube is great for taller riders who need a bit more room (6ft / 180cm plus)
  • Designed to excel at Street riding thanks to responsive geometry but will feel at home in any riding environment
  • Full 4130 Chromoly frame, bar, fork and crank
  • U-brake system on removable mounts for the option to run brakeless
  • Durable double walled rims
G5+E5

NEED SOME HELP CHOOSING A BMX BIKE?

we have compiled a complete bmx buyers guide to help you through the process!
Here at sourcebmx we are all riders so we can offer advice that only 100% rider-owned bmx shops can - just ask

BMX BIKE SIZE GUIDE

BMX bikes are measured in two ways, the size of the wheel (20” is the standard BMX Wheel size) and the length of the frame which is gauged by the top tube measurement which we have also simplified for you into XS, Small, Medium etc categories.

Below is a guide to what size you should be looking for. note there is some overlap in sizes as personal preference also comes into the equation.

< IMPERIAL (FEET & INCHES) --- METRIC (CM) >