Inspection
Frame condition
Inspect the frame, fork, welds, and high-stress areas for cracks, dents, or prior repairs.
GT
2018 GT Aggressor Comp
Previous used estimate
$136 - $139
Actual value depends on condition, size, and local demand.
Value Guide market data · 2018 GT Aggressor Comp
12-month projected trend
2%
Direction and magnitude, not judgment
vs. category average
4%
Drops faster than category avg
Price over time - 2018 GT Aggressor Comp
Values based on actual sales data. Enter your bike's specifics to get a precise valuation.
All Aggressor model years
2021$257 - $264▲ 89% vs. 2018
2020$210 - $216▲ 55% vs. 2018
2019$195 - $201▲ 44% vs. 20182018$136 - $139Currently viewing
2017$158 - $162▲ 16% vs. 2018
2016$144 - $148▲ 6% vs. 2018
2015$144 - $148▲ 6% vs. 2018
2014$125 - $129▼ 8% vs. 2018
2013$120 - $124▼ 11% vs. 2018
2012$126 - $130▼ 7% vs. 2018
2010$115 - $118▼ 15% vs. 2018
2008$86 - $88▼ 37% vs. 2018
2007$86 - $88▼ 37% vs. 2018
2006$87 - $90▼ 36% vs. 2018
2002$104 - $107▼ 23% vs. 2018
2001$104 - $107▼ 23% vs. 2018
1998$110 - $113▼ 19% vs. 2018Compare Aggressor Comp models
1 modelsChoose a different build or frame style to see its value.
Overview
About this bike
The GT Aggressor Comp is like the sport-utility vehicle of the bike world. With its capable handling, rugged versatility, and comfortable, confidence-inspiring performance, there isn't much it can't do. Its aluminum triple triangle frame is strong and stiff so your pedaling is snappy and quick. The suspension fork knocks down bumps like they're not even there, and a 21-speed drivetrain makes short work of hilly terrain: the type of terrain in which you'll be glad you have the stopping power of disc brakes! Equally happy camping out on mountain trails or cruising around town with friends, the Aggressor is ready for anything.
Specifications
- Subtype
- Cross Country
- Category
- Mountain
- Component Fork
- All Terra CH-565, 26mm stanchions, alloy lower legs, 80mm travel for 27.5, disc brake specific
- Component Hubs
- Alloy Disc
- Component Size
- X-Small, Small, Medium, Large, X-Large
- Component Stem
- Alloy 1 1/8" Threadless, 4-Bolt W/ CNC face plate, 10° rise, 31.8mm clamp
- Product Family
- Aggressor
- Component Chain
- KMC Z50
- Component Color
- Black, Blue Silver
- Component Frame
- 6061-T6 aluminum Triple Triangle frame, w/ replaceable derailleur hanger, and 1 1/8" head tube, 27.5 design
- Component Brakes
- Front: Tektro mechanical disc w/ 160mm rotor Rear: Promax mechanical disc w/ 160mm rotor
- Component Pedals
- GT Slim Line Flat Nylon
- Component Saddle
- All Terra MTB
- Component Headset
- 1 1/8" Ahead
- Component Cassette
- Sunrace 7-Speed, 14-34
- Component Crankset
- All-Terra forged alloy
- Component Shifters
- Shimano EF-500 EZ Fire Plus, 7 Speed
- Component Handlebar
- 6061 aluminum riser, 640mm width, 12mm rise, 31.8mm clamp, double butted
- Component Seat Post
- Alloy micro adjust
- Component Chainrings
- 42/34/24
- Component Front Tire
- All Terra Cypher 27.5X2.10", 30tpi
- Component Tape Grips
- GT Statement logo grips
- Component Brake Levers
- Shimano
- Component Bottom Bracket
- VP cartridge sealed
- Component Rear Derailleur
- Shimano Altus, RD-M310
- Component Front Derailleur
- Shimano Tourney
- Hubs
- Alloy Disc
- Crankset
- All-Terra forged alloy
- Pedals
- GT Slim Line Flat Nylon
- Bottom Bracket
- VP cartridge sealed
- Chain
- KMC Z50
- Saddle
- All Terra MTB
- Handlebar
- 6061 aluminum riser, 640mm width, 12mm rise, 31.8mm clamp, double butted
- Headset
- 1 1/8" Ahead
- Front Derailleur
- Shimano Tourney
- Rear Derailleur
- Shimano Altus, RD-M310
- Stem
- Alloy 1 1/8" Threadless, 4-Bolt W/ CNC face plate, 10° rise, 31.8mm clamp
- Brake Levers
- Shimano
- Brakes
- Front: Tektro mechanical disc w/ 160mm rotor Rear: Promax mechanical disc w/ 160mm rotor
- Cassette
- Sunrace 7-Speed, 14-34
- Chainrings
- 42/34/24
- Fork
- All Terra CH-565, 26mm stanchions, alloy lower legs, 80mm travel for 27.5, disc brake specific
- Frame
- 6061-T6 aluminum Triple Triangle frame, w/ replaceable derailleur hanger, and 1 1/8" head tube, 27.5 design
- Seat Post
- Alloy micro adjust
- Shifters
- Shimano EF-500 EZ Fire Plus, 7 Speed
- Tape/Grips
- GT Statement logo grips
- Color
- Blue Silver
- Size
- X-Large
- Front Tire
- All Terra Cypher 27.5X2.10", 30tpi
What to check when buying used
Inspection
Drivetrain wear
Check chain stretch, cassette teeth, chainrings, and shifting under load before negotiating price.
Inspection
Service history
Ask for service records covering bearings, brakes, drivetrain, and any frame or fork warranty work.
Inspection
Suspension service
Confirm fork and rear shock service intervals and check pivot bearings for play.