18" Mongoose Legion L18 (2025)
18" Mongoose Legion L18 (2025) - Black is backordered and will ship as soon as it is back in stock.
Pickup available at HALLAM
Usually ready in 24 hours



Shipping Information
Shipping Information
Certain bike brands cannot be shipped and are only available for Click and Collect.
These include but are not limited to the following brands: Giant, GT, Liv, Momentum and Mongoose.
For all other brands, we can provide a shipping quote to your postcode. Please contact us by email at staff@ivanhoecycles.com.au, or text us on 0417 122 950.
With the Legion Series, Mongoose offers a full line of freestyle BMX bikes for riders of all ages and ability levels. The Legion L18 is the perfect in-between option for a kid who wants what comes on a standard 20” BMX but needs a slightly smaller frame!
HIGHLIGHTS
- Mongoose® Hi-Ten steel frame and fork; 7” handlebar
- 1-piece forged steel crank; 140 mm crank arms; 25/9t gearing
- Aluminum single wall 28H rims; 18 x 2.3” tires
SPECIFICATIONS
Frame | Hi-Ten steel, BMX freestyle geometry |
Fork | Hi-Ten steel |
Crank | 1-piece, forged steel, 25T steel chainring |
Chain | KMC S1 |
Bottom Bracket | American loose ball |
Rear Cog | Single-speed, 9T cassette driver |
Rims | Aluminum single wall, 24 mm ID, 28H |
Front Hub | Steel, ball bearing, 3/8 in axle, 28H |
Rear Hub | Steel, ball bearing, 3/8 in axle, 28H |
Spokes | 14G, steel, black |
Tires | 18 in x 2.3 in, wire bead |
Pedals | Mongoose, nylon |
Brakes | U-brake, aluminum |
Handlebar | Mongoose, Hi-Ten steel, 26 in width, 7 in rise |
Stem | Mongoose, threadless front load, 48 mm |
Headset | Threadless, 1-1/8” external, retainer bearing |
Seat Post | Steel, 250 mm, 25.4 mm |
Saddle | Mongoose, steel rails |
Grips | Mongoose Zig, 130 mm |
Sizes | One Size |
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