Inspection
Frame condition
Inspect the frame, fork, welds, and high-stress areas for cracks, dents, or prior repairs.
GT
2017 GT Aggressor Expert
Value Guide market data · 2017 GT Aggressor Expert
12-month trend
— %
Direction and magnitude, not judgment
vs. category average
— %
No category comparison available
Price over time - 2017 GT Aggressor Expert
Values based on actual sales data. Enter your bike's specifics to get a precise valuation.
All Aggressor model years
2021$716 - $832▲ 40% vs. 2017
2020$581 - $675▲ 14% vs. 2017
2019$539 - $626▲ 5% vs. 2017
2018$512 - $5940% vs. 20172017$512 - $594Currently viewing
2016$465 - $540▼ 9% vs. 2017
2015$512 - $5940% vs. 2017
2014$512 - $5940% vs. 2017
2013$437 - $508▼ 15% vs. 2017
2012$409 - $475▼ 20% vs. 2017
2010$326 - $378▼ 36% vs. 2017
2008$260 - $302▼ 49% vs. 2017
2007$260 - $302▼ 49% vs. 2017
2006$279 - $324▼ 45% vs. 2017
2002$539 - $626▲ 5% vs. 2017
2001$539 - $626▲ 5% vs. 2017
1998$365 - $423▼ 29% vs. 20172017 Aggressor Expert lineup
Overview
About this bike
2017 GT Aggressor Expert value depends on condition, original build, frame material, service history, and current buyer demand.
Specifications
Frameset
- Fork
- All Terra CH-525 HLO, 29mm Stanchions, alloy Lower legs 80mm travel for 27.5, disc brake specifc
- Frame
- 6061-T6 Aluminum Triple Triangle Frame, w/ Replaceable Derailleur Hanger, 27.5 Design
Drivetrain
- Groupset
- 2017 GT Aggressor Expert
- Crankset
- All-Terra Forged Alloy
- Bottom Bracket
- Cartridge Sealed
- Chain
- KMC Z72
- Front Derailleur
- Shimano TY500
- Rear Derailleur
- Acera
- Cassette/Rear Cogs
- Sunrace, 11-34T, 8-Speed Cassette UPC
- Chainrings
- 42/34/24T
- Shifters
- Shimano
Brakes
- Brake Levers
- Tektro Disc Brake Lever
- Brakes
- Tektro Hydro Disc, 160mm Rotor
Cockpit
- Saddle
- All Terra MTB
- Headset
- 1 1/8" Ahead
- Stem
- Alloy 1 1/8" Threadless, 4-Bolt W/ CNC Face Plate, 10mm Rise, 31.8mm Clamp
- Handlebars
- 6061 Aluminum Riser, 640mm Width, 12mm Rise, 31.8mm Clamp
- Seat Post
- Alloy Micro Adjust
- Tape/Grips
- GT Statement
Wheels & Tires
- Hubs
- Front: Alloy Disc QR</br>Rear: Alloy Cassette Disc QR
- Tires
- All Terra Cypher 27.5X2.1"
Pedals
- Pedals
- GT Slim Line Flat Pedal
Accessories
- Rims/Wheels
- All Terra Double Wall, 32H 27.5", disc specific
Frame sizing
XS4'10"-5'2"
S5'2"-5'6"
M5'6"-5'10"
L5'10"-6'2"
XL6'2"-6'6"
M highlighted as most common resale size. Sourced from catalog metadata.
Geometry
- Stack
- Varies by size
- Reach
- Varies by size
- Wheelbase
- Varies by size
Industry standard. Sourced from catalog metadata.
What to check when buying used
Inspection
Drivetrain wear
Check chain stretch, cassette teeth, chainrings, and shifting under load before negotiating price.
Inspection
Wheel condition
Inspect rims, hubs, spokes, and bearing play; ask about the tire age and any prior wheel rebuilds.
Inspection
Service history
Ask for service records covering bearings, brakes, drivetrain, and any frame or fork warranty work.
Inspection
Suspension service
Confirm fork lowers and rear shock service intervals; ask for the most recent service receipts.
Inspection
Frame pivots & bearings
Cycle the suspension off the bike to feel for play, grit, or noise in pivot bearings.