MSRP | ($216) | $225 | $250 |
|---|---|---|---|
Where to Buy | — $1 At | — $1 At | — $1 At |
Category | General Youth | General Youth | General Youth |
| Steel | Aluminum | Aluminum | |
Fork | Steel | Steel | Steel |
Wheels | Aluminum | Aluminum | Aluminum |
Wheel Size | 12″ | 16″ | 20″ |
Brakes | Coaster | Coaster | Coaster |
Drivetrain | Single-speed | Single-speed | Single-speed |
Brand Site | |||
Summary | The GT Grunge 12", GT Grunge 16", and GT Grunge 20" are all general youth bikes with coaster brakes. The Grunge 12" has a steel frame and 12″ aluminum wheels, the Grunge 16" has 16″ aluminum wheels, and the Grunge 20" has 20″ aluminum wheels and higher gearing. | ||
Frame | 12" GT LegitFit Design, Hi-Ten Steel | 16" GT LegitFit Design, alloy | 20" GT LegitFit Design, Alloy |
|---|---|---|---|
Fork | GT Hi-Ten Steel, 1" threaded steerer | GT Hi-Ten Steel, 1" threaded steerer | GT Hi-Ten Steel, 1" Threaded Steerer |
Bottom Bracket | Steel, Ball type | Steel, Ball type | Steel, Ball type |
Headset | Steel, 1" threaded | Steel, 1" | Steel, 1" |
Stem | 2-Bolt alloy top, steel quill | 2-Bolt Alloy Top, steel quill | 2-Bolt alloy top, steel quill |
Handlebar | Steel Riser bar, 130mm rise, 480mm width | Steel Riser bar, 130mm rise, 500mm width | Steel Riser bar, 176mm rise, 580mm width |
Saddle | GT 1-piece | GT 1-piece | GT 1-piece |
Seatpost | Alloy | Alloy | Alloy |
Pedals | Jr. BMX design, resin | Jr. BMX design, resin | Jr. BMX design, resin |
Grips | 95mm closed end | 95mm closed end | 120mm closed end |
Crank | Forged One-Piece Type, 89mm, steel, 24T | Forged One-Piece Type, 89mm, Steel, 28T | Forged One-Piece Type, 127mm, 32T |
|---|---|---|---|
Cassette | 16T Coaster | 16T Coaster | 16T Coaster |
Chain | KMC HV410 1/2" x 1/8" | KMC HV410 1/2" x 1/8" | KMC S1, 1/2x1/8" |
Brakes | Coaster rear | Coaster rear | Coaster rear |
Rims | Alloy, 16h | Alloy, 20h | Alloy, 28h |
|---|---|---|---|
Spokes | Stainless Steel, 14g | Stainless Steel, 14g | Stainless Steel, 14g |
Front Hub | Steel, Nutted axle | Steel, Nutted axle | Steel, Nutted axle |
Rear Hub | Steel, nutted axle, coaster brake | Steel, nutted axle, coaster brake | Steel, nutted axle, coaster brake |
Tires | GT 12 x 2.25"GT 12 x 2.25" GT 12 x 2.25" | GT 16 x 1.95"GT 16 x 1.95" GT 16 x 1.95" | GT 20 x 1.95"GT 20 x 1.95" GT 20 x 1.95" |