VelopediaBicycle Archive ยท Specification report

2011 GT Stomper 20

Velopedia Archive ID 25054

Overview

Model year2011
BrandGT
ModelStomper 20
Bicycle typeJuvenile mountain bike, suspension
Archive ID25054
ColorsGloss black, ano white

Frameset

Frame constructionAluminum
Frame material6061 aluminum
ForkSR M 2000, 75mm travel
Rear shockN/A

Drivetrain

Component groupMountain Mix
ShiftersShimano Revo twist
Rear derailleurShimano TX-30
CranksetCotterless aluminum, 36T teeth
Bottom bracket3 piece square taper
CassetteShimano
Rear cogs7-speed, 14 - 28 teeth
ChainUniglide
PedalsHigh Impact nylon platform

Brakes

BrakesTektro linear pull brakes, alloy short reach levers

Cockpit & contact points

HeadsetAheadset
HandlebarAlloy Riser
Handlebar extensionsNot included
StemAhead alloy ATB
SaddleBoys Anatomic MTN
SeatpostAlloy

Wheels & tires

HubsAlloy QR
RimsATB aluminum
SpokesStainless, 14ga. (2.0mm)
Spoke nipplesBrass
Front tire20 x 1.95" Kenda ATB Dual purpose
Wheel size20" wheels

Manufacturer-published archive data. Confirm exact standards and dimensions before ordering parts or performing service. Generated by Velopedia on September 26, 2026.