2015 Mongoose Legion L18
Own a 2015 Mongoose Legion L18?
Track its value in your garage, or list it for sale locally in a few taps.
What a used one is worth
Open the value toolNew
$47
$27 to $61
Like new
$45
$25 to $58
Excellent
$42
$24 to $54
Good
$35
$20 to $45
Fair
$26
$15 to $33
For parts
$14
$8 to $18
From the launch price, aged to 2026 and adjusted for condition. Guidance from our catalog, not an appraisal.
Overview
- Brand
- Mongoose
- Model family
- Legion
- Model year
- 2015
- Category
- Kids · bmx
- Frame material
- steel
- Sizes
- 18"
- Wheel size
- 18
- Years sold
- 2015 to 2026
- Launch MSRP (US)
- $139
- Current list price
- $200 (as of 2026-09)
Drivetrain
- Speeds
- 1
- Electronic
- false
Build
- Fork
- Mongoose, 18", Hi-Ten steel, 100 mm, nutted
- Stem
- Mongoose, aluminum, threadless, 45 mm
- Tires
- Mongoose, 18 in x 2.3 in, wire bead
- Brakes
- Power, U-brake, steel
- Saddle
- Mongoose, steel rails
- Wheels
- Mongoose, aluminum, single wall, 25 mm ID, 36H, non tubeless
- Crankset
- 1-piece, forged steel, 32T
- Seatpost
- Steel, 250 mm, 25.4 mm
- Handlebar
- Mongoose, hi-ten steel, 26 in width, 6.5 in rise, 22.2 mm clamp
- Suspension
- none
Mass market model record: appears in mongoose.com first-party captures 2015 to 2026 and is listed on the live site in 2026-09. Years before 2019 come from the old mongoose.com catalog listings, which kept older models listed for years, so the true selling window may be shorter. Components are from the live mongoose.com page. Launch price: mongoose.com capture 2015-09, in the first year the model appears. Factory colors: White.