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MountainVerified spec

2008 Trek 3900

Launched at $370

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What a used one is worth

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New

$70

$34 to $97

Like new

$66

$32 to $92

Excellent

$63

$31 to $87

Good

$52

$25 to $73

Fair

$38

$19 to $53

For parts

$21

$10 to $29

From the launch price, aged to 2026 and adjusted for condition. Guidance from our catalog, not an appraisal.

Overview

Brand
Trek
Model family
3 Series
Model year
2008
Category
Mountain · xc
Frame material
aluminum
Sizes
13, 16, 18, 19.5, 21, 22.5
Wheel size
26
Launch MSRP (US)
$370

Drivetrain

Speeds
8
Groupset
Shimano Acera
Chainrings
3
Electronic
false

Build

Stem
Bontrager Approved, 25 degree
Tires
Bontrager Connection Trail, 26x2.0"; 27 tpi
Brakes
Tektro V w/Shimano EF50 levers
Saddle
Bontrager Approved
Wheels
Alloy front hub, Shimano RM30 rear hub; Matrix 550 rims
Cassette
SRAM PG830 11-32, 8 speed
Crankset
SR Suntour XCC-T102 42/34/24
Seatpost
Bontrager Approved
Shifters
Shimano EF50, 8 speed
Handlebar
Bontrager Approved, 30mm rise
Rear derailleur
Shimano Acera

Spec from Trek's retired bike archive (archive.trekbikes.com, US region page captured 2016-02). Colors: Matte Black/Matte Smooth Silver; Metallic Blue/Silver. MSRP from trekbikes.com's own 2008 model page captured 2007-10 (inside the launch window; the page's own image path dates it to model year 2008).

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