Inspection
Frame condition
Inspect the frame, fork, welds, and high-stress areas for cracks, dents, or prior repairs.
GT
2018 GT Aggressor Expert GTw
Value Guide market data · 2018 GT Aggressor Expert GTw
12-month trend
5%
Direction and magnitude, not judgment
vs. category average
— %
No category comparison available
Price over time - 2018 GT Aggressor Expert GTw
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. 2018
2020$581 - $675▲ 14% vs. 2018
2019$539 - $626▲ 5% vs. 2018
2018$512 - $594Currently viewing
2017$512 - $5940% vs. 2018
2016$465 - $540▼ 9% vs. 2018
2015$512 - $5940% vs. 2018
2014$512 - $5940% vs. 2018
2013$437 - $508▼ 15% vs. 2018
2012$409 - $475▼ 20% vs. 2018
2010$326 - $378▼ 36% vs. 2018
2008$260 - $302▼ 49% vs. 2018
2007$260 - $302▼ 49% vs. 2018
2006$279 - $324▼ 45% vs. 2018
2002$539 - $626▲ 5% vs. 2018
2001$539 - $626▲ 5% vs. 2018
1998$365 - $423▼ 29% vs. 20182018 Aggressor Expert GTw lineup
Overview
About this bike
2018 GT Aggressor Expert GTw 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, disc brake specific
- Frame
- 6061-T6 aluminum Triple Triangle frame, w/ replaceable derailleur hanger, and 1 1/8" head tube, 27.5 design
Drivetrain
- Groupset
- 2018 GT Aggressor Expert GTw
- Crankset
- All-Terra forged alloy
- Bottom Bracket
- VP cartridge sealed
- Chain
- KMC Z72
- Front Derailleur
- Shimano TY500
- Rear Derailleur
- Shimano Acera, RD-M360
- Cassette/Rear Cogs
- Sunrace 8-Speed, 11-34
- Chainrings
- 42/34/24
- Shifters
- Shimano SL-EF-505, 8 Speed
Brakes
- Brake Levers
- Shimano
- Brakes
- Shimano hydraulic disc w/ 160mm rotors
Cockpit
- Saddle
- GT Ladies MTB
- Headset
- 1 1/8" Ahead
- Stem
- Alloy 1 1/8" Threadless, 4-Bolt W/ CNC face plate, 10° rise, 31.8mm clamp
- Handlebars
- 6061 aluminum riser, 640mm width, 12mm rise, 31.8mm clamp, double butted
- Seat Post
- Alloy micro adjust
- Tape/Grips
- GT Statement logo grips
Wheels & Tires
- Hubs
- Alloy Disc
- Tires
- All Terra Cypher 27.5X2.10", 30tpi
- Spokes
- 14g stainless
Pedals
- Pedals
- GT Slim Line Flat Nylon
Accessories
- Rims/Wheels
- All Terra ASD10 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.