2020 GT Grunge 20"

Aluminum frame run bike

View on www.gtbicycles.com

2020 GT Grunge 20"
  • MSRP $250
  • Suspension Rigid
  • Frame Aluminum
  • Fork Steel
  • Wheels 20″
  • Drivetrain Single-speed
  • Brakes Coaster

Where to Buy


Single-speed — 1 speed

2020 GT Grunge 20"
12 mph
Similar Bikes
14 mph

Similar bikes are easier to ride up hills than the 2020 Grunge 20".

The 2020 Grunge 20" won‘t keep up with similar bikes while riding downhill or sprinting.

Estimated Spec Level

Estimated spec level of the Grunge 20" compared to other run bikes. 99 Spokes analyzes the build material and quality level of the frame, fork, wheelset, groupset, suspension system, and more to estimate the overall spec level of each bike.

Learn more

est. spec level →$0$100$200$300$400$500$600$700
This bike
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Frame20" GT LegitFit Design, Alloy
ForkGT Hi-Ten Steel, 1" Threaded Steerer
Bottom BracketSteel, Ball type
HeadsetSteel, 1"
Stem2-Bolt alloy top, steel quill
HandlebarSteel Riser bar, 176mm rise, 580mm width
SaddleGT 1-piece
PedalsJr. BMX design, resin
Grips120mm closed end
CrankForged One-Piece Type, 127mm, 32T
Cassette16T Coaster
ChainKMC S1, 1/2x1/8"
BrakesCoaster rear
RimsAlloy, 28h
SpokesStainless Steel, 14g
Front HubSteel, Nutted axle
Rear HubSteel, nutted axle, coaster brake
TiresGT 20 x 1.95"GT 20 x 1.95" GT 20 x 1.95"
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2020 GT Grunge 20"