MountainMass marketVerified spec
2025 Mongoose Flatrock 26
Launched at $325Lists today at $325 (2026-09)
Own a 2025 Mongoose Flatrock 26?
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
$253
$179 to $292
Like new
$241
$170 to $278
Excellent
$228
$161 to $263
Good
$190
$134 to $219
Fair
$139
$98 to $161
For parts
$76
$54 to $88
From the launch price, aged to 2026 and adjusted for condition. Guidance from our catalog, not an appraisal.
Overview
- Brand
- Mongoose
- Model family
- Flatrock
- Model year
- 2025
- Category
- Mountain · recreational
- Frame material
- aluminum
- Sizes
- 26"
- Wheel size
- 26
- Years sold
- 2025 to 2026
- Launch MSRP (US)
- $325
- Current list price
- $325 (as of 2026-09)
Drivetrain
- Speeds
- 7
- Electronic
- false
Build
- Fork
- Element, 60 mm travel
- Stem
- Steel, threadless
- Tires
- 26 in. x 2.3 in.
- Brakes
- Front & rear linear pull
- Saddle
- Mongoose MTB
- Wheels
- Aluminum, double wall
- Crankset
- Forged steel, 32T
- Seatpost
- Steel, 27.2 mm.
- Shifters
- LX, 1 x 7
- Handlebar
- Steel, 15 mm. rise, 31.8 mm. clamp
- Suspension
- front
- Rear derailleur
- LX
- Travel front mm
- 60
Mass market model record: appears in mongoose.com first-party captures 2025 to 2026 and is listed on the live site in 2026-09. Components are from the live mongoose.com page. Launch price: mongoose.com capture 2025-10, in the first year the model appears. Factory colors: Grey, Black.
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