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MountainPartial spec

2009 GT Aggressor

Launched at $370

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What a used one is worth

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New

$76

$38 to $104

Like new

$72

$36 to $99

Excellent

$68

$34 to $94

Good

$57

$28 to $78

Fair

$42

$21 to $57

For parts

$23

$11 to $31

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

Overview

Brand
GT
Model family
Aggressor
Model year
2009
Category
Mountain · recreational
Wheel size
26
Launch MSRP (US)
$370

Drivetrain

Speeds
7
Groupset
Shimano Tourney
Chainrings
3
Electronic
false
Total gears
21

Build

Stem
GT ATB, threadless 25 degree rise with four bolt alum face plate
Tires
ATB Dual purpose, 27 TPI 26 x 2.1
Brakes
Radius linear pull brake (front and rear); levers: Shimano ST-EF50
Saddle
GT Custom MTN with anatomic pressure relief
Wheels
rims: Alloy ATB, black with silver sidewalls; front hub: Alloy QR; rear hub: Alloy QR; spokes: Stainless steel 14 gauge
Cassette
Shimano 7 Speed 14-28 HG
Crankset
Suntour XCC-T02, 42,32,22
Seatpost
Alloy Micro adjust
Shifters
Shimano ST-EF50 7 speed EZ fire shifters
Handlebar
20 mm Rise, 6 degree bend, anatomically sized
Rear derailleur
Shimano TX-50

Spec from GT's 2009 archive page on its 2010 site (US site, captured 2009-09; model year from the archive year in the URL and breadcrumb). Fork material: 6061, Triple Triangle, with Dirt Worthy Geometry, disc compatible with removeable hanger (24 inch wheel not removable); SR M 2025, alloy crown with 75 mm travel Front derailleur: Shimano TY-10 Bottom bracket: Cartridge Sealed, square taper Chain: UG-50 Headset: Aheadset Threadless Pedals: High Impact nylon platform Grips: GT Dual Density ATB Seat clamp: Alum QR Colors: Matte Silver, Matte Black, White MSRP $369.99 read from the product's own price block (under the model name) on GT's US page captured 2009-09, inside the 2009 launch window (fix round 2026-10-21).

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