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2023 GT

Grunge 20

A 20″ general youth bike with rim brakes.
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Manufacturer Price

$300
SuspensionRigid
ForkSteel
Wheels20″
DrivetrainSingle-speed
BrakesRim
View on gtbicycles.comLearn about GT
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Insights
Gearing

A bike with lower gearing will be easier to ride up steep hills, while a higher top end means it will pedal faster down hills.

Lowest gear

(climbing)

12 mph

Grunge 20

18 mph

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Highest gear

(descending)

Specs
Build
Fork

GT Hi-Ten Steel, 1" Threaded Steerer

Headset

1" Threaded, Steel

Saddle

GT 1-piece

Seatpost

Alloy

Type: Rigid

Pedals

Jr. BMX Design, Resin

Groupset
Crank

Forged One-Piece Type, 127mm, 32T

Cassette

16T Coaster

Chain

KMC S1, 1/2x1/8"

Brakes

Rim

Type: Rim

Wheels
Tires

Front: GT 20 x 1.95", Rear: GT 20 x 1.95"

Rider Notes
Riders Also Viewed

First added October 2

Last updated May 25

Not listed for 734 days