Inspection
Frame condition
Inspect the frame, fork, welds, and high-stress areas for cracks, dents, or prior repairs.
GT
2015 GT Aggressor (20-inch)
Previous used estimate
$95 - $98
Actual value depends on condition, size, and local demand.
Value Guide market data · 2015 GT Aggressor (20-inch)
12-month projected trend
— %
Direction and magnitude, not judgment
vs. category average
3%
Holds value better than category avg
Price over time - 2015 GT Aggressor (20-inch)
Values based on actual sales data. Enter your bike's specifics to get a precise valuation.
All Aggressor model years
2021$257 - $264▲ 170% vs. 2015
2020$210 - $216▲ 121% vs. 2015
2019$195 - $201▲ 105% vs. 2015
2018$166 - $170▲ 74% vs. 2015
2017$158 - $162▲ 66% vs. 2015
2016$144 - $148▲ 51% vs. 20152015$95 - $98Currently viewing
2014$125 - $129▲ 32% vs. 2015
2013$120 - $124▲ 26% vs. 2015
2012$126 - $130▲ 33% vs. 2015
2010$115 - $118▲ 21% vs. 2015
2008$86 - $88▼ 10% vs. 2015
2007$86 - $88▼ 10% vs. 2015
2006$87 - $90▼ 8% vs. 2015
2002$104 - $107▲ 9% vs. 2015
2001$104 - $107▲ 9% vs. 2015
1998$110 - $113▲ 16% vs. 2015Compare Aggressor (20-inch) models
1 modelsChoose a different build or frame style to see its value.
Overview
About this bike
GT's Aggressor has the same features as adult mountain bikes, scaled down for your little shredder. With the light and lively 6061-aluminum GT frame and the easy-shifting 7-speed drivetrain, they have all the tools necessary to tackle terrain on and off road and keep right up with you.
Specifications
- Category
- Kids
- Component Fork
- GT Steel
- Component Hubs
- Aluminum
- Component Rims
- Alex DM18
- Component Stem
- Ahead aluminum
- Product Family
- Aggressor
- Component Frame
- GT Triple-Triangle 6061-aluminum
- Component Tires
- GT All-Terrain, 20 x 2.0
- Component Brakes
- Linear-pull
- Component Pedals
- GT Slim Line platform
- Component Saddle
- GT MTB
- Component Cassette
- Shimano, 7-speed: 14-28
- Component Crankset
- Prowheel aluminum
- Component Seatpost
- GT aluminum
- Component Shifters
- Shimano Revo Twist
- Component Handlebar
- GT Riser
- Component Chainrings
- 36T
- Component Brake Levers
- Tektro
- Component Rear Derailleur
- Shimano Tourney
- Component Fork Brand Model
- GT Steel
- Component Frame Construction
- GT Triple-Triangle 6061-aluminum
- Frame Construction
- GT Triple-Triangle 6061-aluminum
- Fork Brand & Model
- GT Steel
- Hubs
- Aluminum
- Rims
- Alex DM18
- Tires
- GT All-Terrain, 20 x 2.0
- Crankset
- Prowheel aluminum
- Pedals
- GT Slim Line platform
- Seatpost
- GT aluminum
- Saddle
- GT MTB
- Handlebar
- GT Riser
- Rear Derailleur
- Shimano Tourney
- Stem
- Ahead aluminum
- Brake Levers
- Tektro
- Brakes
- Linear-pull
- Cassette
- Shimano, 7-speed: 14-28
- Chainrings
- 36T
- Fork
- GT Steel
- Frame
- GT Triple-Triangle 6061-aluminum
- Shifters
- Shimano Revo Twist
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.