Inspection
Frame condition
Inspect the frame, fork, welds, and high-stress areas for cracks, dents, or prior repairs.
GT
2019 GT Grunge Boy's 12-inch
Previous used estimate
$74 - $76
Actual value depends on condition, size, and local demand.
Value Guide market data · 2019 GT Grunge Boy's 12-inch
12-month projected trend
3%
Direction and magnitude, not judgment
vs. category average
6%
Holds value better than category avg
Price over time - 2019 GT Grunge Boy's 12-inch
Values based on actual sales data. Enter your bike's specifics to get a precise valuation.
All Grunge model years
Compare Grunge Boy's 12-inch models
1 modelsChoose a different build or frame style to see its value.
Overview
About this bike
For little cruisers looking to pedal their way forward...and coaster brakes to make them stop! Sure, we had grunge in the 90's, but it was never this much fun. Channel your little rocker's energy into two wheels and get them gunning for a different kind of stage from an early age with a single-speed bike built just for riders who are growing up through the ranks. The LegitFit system gives them better positioning, easier pedaling, and a faster start to their next ride.
Specifications
- Subtype
- 12-inch
- Category
- Kids
- Component Fork
- GT Hi-Ten Steel, 1" Threaded Steerer
- Component Hubs
- Front: Steel, 16 Hole, 3/8" Axle Rear: Steel, 16 Hole, Coaster
- Component Rims
- Alloy, 16h
- Component Stem
- 2-Bolt Alloy Top, Steel Quill
- Product Family
- Grunge
- Component Chain
- KMC HV410 1/2" x 1/8"
- Component Color
- Chartreuse
- Component Frame
- 12" GT LegitFit Design, Hi-Ten Steel
- Component Brakes
- Coaster rear
- Component Pedals
- Jr. BMX design, resin
- Component Saddle
- GT 1-piece
- Component Cassette
- 16T Coaster
- Component Crankset
- Forged One-Piece Type, 89mm, Steel
- Component Handlebar
- Steel Riser bar, 130mm rise, 480mm
- Component Seat Post
- Alloy
- Component Chainrings
- 24T
- Component Front Tire
- GT 12 x 2.25"
- Component Tape Grips
- 95mm closed end
- Hubs
- Front: Steel, 16 Hole, 3/8" Axle Rear: Steel, 16 Hole, Coaster
- Rims
- Alloy, 16h
- Crankset
- Forged One-Piece Type, 89mm, Steel
- Pedals
- Jr. BMX design, resin
- Chain
- KMC HV410 1/2" x 1/8"
- Saddle
- GT 1-piece
- Handlebar
- Steel Riser bar, 130mm rise, 480mm
- Stem
- 2-Bolt Alloy Top, Steel Quill
- Brakes
- Coaster rear
- Cassette
- 16T Coaster
- Chainrings
- 24T
- Fork
- GT Hi-Ten Steel, 1" Threaded Steerer
- Frame
- 12" GT LegitFit Design, Hi-Ten Steel
- Seat Post
- Alloy
- Tape/Grips
- 95mm closed end
- Color
- Chartreuse
- Front Tire
- GT 12 x 2.25"
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.