Inspection
Frame condition
Inspect the frame, fork, welds, and high-stress areas for cracks, dents, or prior repairs.
GT
2019 GT Grunge Coaster 20-inch
Previous used estimate
$88 - $91
Actual value depends on condition, size, and local demand.
Value Guide market data · 2019 GT Grunge Coaster 20-inch
12-month projected trend
3%
Direction and magnitude, not judgment
vs. category average
4%
Holds value better than category avg
Price over time - 2019 GT Grunge Coaster 20-inch
Values based on actual sales data. Enter your bike's specifics to get a precise valuation.
All Grunge model years
Compare Grunge Coaster 20-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 your next ride.
Specifications
- Subtype
- 20-inch
- Category
- Kids
- Component Fork
- GT Hi-Ten Steel, 1" Threaded Steerer
- Component Hubs
- Front: Steel, 28 Hole, 3/8" Axle Rear: Steel, 28 Hole, Coaster
- Component Stem
- 2-Bolt Alloy Top, Steel Quill
- Product Family
- Grunge
- Component Chain
- KMC Z410A, 1/2" x 1/8"
- Component Color
- Gloss Black w/Cyan & Chartreuse
- Component Frame
- 20" GT LegitFit Design, Alloy
- 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, 127mm
- Component Handlebar
- Steel Riser bar, 176mm rise, 580mm
- Component Seat Post
- Alloy
- Component Chainrings
- 32T
- Component Front Tire
- GT 20 x 1.95"
- Component Tape Grips
- 120mm closed end
- Hubs
- Front: Steel, 28 Hole, 3/8" Axle Rear: Steel, 28 Hole, Coaster
- Crankset
- Forged One-Piece Type, 127mm
- Pedals
- Jr. BMX design, resin
- Chain
- KMC Z410A, 1/2" x 1/8"
- Saddle
- GT 1-piece
- Handlebar
- Steel Riser bar, 176mm rise, 580mm
- Stem
- 2-Bolt Alloy Top, Steel Quill
- Brakes
- Coaster rear
- Cassette
- 16T Coaster
- Chainrings
- 32T
- Fork
- GT Hi-Ten Steel, 1" Threaded Steerer
- Frame
- 20" GT LegitFit Design, Alloy
- Seat Post
- Alloy
- Tape/Grips
- 120mm closed end
- Color
- Gloss Black w/Cyan & Chartreuse
- Front Tire
- GT 20 x 1.95"
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.