Inspection
Frame condition
Inspect the frame, fork, welds, and high-stress areas for cracks, dents, or prior repairs.
GT
2020 GT Siren 12"
Previous used estimate
$81 - $84
Actual value depends on condition, size, and local demand.
Value Guide market data · 2020 GT Siren 12"
12-month projected trend
4%
Direction and magnitude, not judgment
vs. category average
3%
Holds value better than category avg
Price over time - 2020 GT Siren 12"
Values based on actual sales data. Enter your bike's specifics to get a precise valuation.
All Siren model years
Overview
About this bike
For little cruisers looking to pedal their way forward...and coaster brakes to make them stop! - 12" LegitFit hi-ten steel frame - Alloy rims - Rear coaster brake
Specifications
- Subtype
- 12-inch
- Category
- Kids
- Component Fork
- GT Hi-Ten Steel, 1" threaded steerer
- Component Hubs
- Front: Steel, Nutted axle
- Component Stem
- 2-Bolt Alloy Top, Steel Quill
- Product Family
- Siren
- Component Chain
- KMC HV410 1/2" x 1/8"
- Component Color
- Orange, Yellow
- Component Frame
- 12" GT LegitFit Design, Hi-Ten Steel
- Component Brakes
- Coaster brake
- Component Pedals
- Jr. BMX design, resin
- Component Saddle
- GT 1-piece
- Component Headset
- Steel, 1" threaded
- Component Cassette
- 16T coaster
- Component Crankset
- Forged One-Piece Type, 89mm, Steel, 24T
- Component Handlebar
- Steel Riser bar, 130mm rise, 480mm width
- Component Seat Post
- Alloy
- Component Front Tire
- GT 12.5 x 2.25"
- Component Tape Grips
- 95mm closed end
- Component Bottom Bracket
- Steel, ball type
- Hubs
- Front: Steel, Nutted axle
- Crankset
- Forged One-Piece Type, 89mm, Steel, 24T
- Pedals
- Jr. BMX design, resin
- Bottom Bracket
- Steel, ball type
- Chain
- KMC HV410 1/2" x 1/8"
- Saddle
- GT 1-piece
- Handlebar
- Steel Riser bar, 130mm rise, 480mm width
- Headset
- Steel, 1" threaded
- Stem
- 2-Bolt Alloy Top, Steel Quill
- Brakes
- Coaster brake
- Cassette
- 16T coaster
- 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
- Yellow
- Front Tire
- GT 12.5 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.