Inspection
Frame condition
Inspect the frame, fork, welds, and high-stress areas for cracks, dents, or prior repairs.
GT
2020 GT Stomper Ace 20
Previous used estimate
$137 - $141
Actual value depends on condition, size, and local demand.
Value Guide market data · 2020 GT Stomper Ace 20
12-month projected trend
4%
Direction and magnitude, not judgment
vs. category average
— %
No category comparison available
Price over time - 2020 GT Stomper Ace 20
Values based on actual sales data. Enter your bike's specifics to get a precise valuation.
All Stomper model years
Overview
About this bike
Multiple gears and front/rear hand brakes...the perfect 1st mountain bike!
Specifications
- Subtype
- 20-inch
- Category
- Kids
- Component Fork
- GT Hi-Ten Steel, 1-1/8" Threadless Steerer
- Component Hubs
- Front: Alloy, QR
- Component Stem
- Alloy Ahead, 30mm
- Product Family
- Stomper
- Component Chain
- KMC Z51, 7-speed
- Component Color
- Gloss Aqua Blue/Red/Black, Mint, Silver
- Component Frame
- 20" GT LegitFit Design, Alloy w/ Replaceable Hanger
- Component Brakes
- GT V-brake
- Component Pedals
- GT Flat Pedal, Resin
- Component Saddle
- GT MTB
- Component Headset
- 1 1/8" Ahead
- Component Cassette
- Shimano TZ500, 14-28, 7-speed FW
- Component Crankset
- Prowheel, Pro-V30, 110mm length
- Component Shifters
- Shimano Revo Twist Shifter For Small Hands, SL-RS36, 7-speed
- Component Handlebar
- Alloy Riser bar, 30mm rise, 580mm width
- Component Seat Post
- Alloy Micro Adjust w/QR
- Component Chainrings
- 30T
- Component Front Tire
- Kenda Small Block Eight, 20 x 2.1" Kenda Small Block Eight, 20 x 2.1"
- Component Tape Grips
- GT MTB
- Component Brake Levers
- Alloy
- Component Bottom Bracket
- Cartridge, square taper
- Component Rear Derailleur
- Shimano Tourney
- Hubs
- Front: Alloy, QR
- Crankset
- Prowheel, Pro-V30, 110mm length
- Pedals
- GT Flat Pedal, Resin
- Bottom Bracket
- Cartridge, square taper
- Chain
- KMC Z51, 7-speed
- Saddle
- GT MTB
- Handlebar
- Alloy Riser bar, 30mm rise, 580mm width
- Headset
- 1 1/8" Ahead
- Rear Derailleur
- Shimano Tourney
- Stem
- Alloy Ahead, 30mm
- Brake Levers
- Alloy
- Brakes
- GT V-brake
- Cassette
- Shimano TZ500, 14-28, 7-speed FW
- Chainrings
- 30T
- Fork
- GT Hi-Ten Steel, 1-1/8" Threadless Steerer
- Frame
- 20" GT LegitFit Design, Alloy w/ Replaceable Hanger
- Seat Post
- Alloy Micro Adjust w/QR
- Shifters
- Shimano Revo Twist Shifter For Small Hands, SL-RS36, 7-speed
- Tape/Grips
- GT MTB
- Color
- Silver
- Front Tire
- Kenda Small Block Eight, 20 x 2.1" Kenda Small Block Eight, 20 x 2.1"
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.