Velopedia Bicycle Archive

Compare Bicycles

Compare published geometry, gearing and specifications for up to three bicycles.

1 of 2 bicycles

At a glance

Key differences

Supported differences are shown below. Data limitations are labeled separately.

  1. Data limitation

    No geometry is recorded for 2009 GT Stomper 20 and 2011 GT Stomper 20.

Gearing comparison

Lower gears help on climbs. Higher gears suit higher speeds.

RPM

RPM = pedal turns per minute.

2009 GT Stomper 2036T · 14–28T · 7-speed
Lowest1.29:1Highest2.57:1Total range200%
Estimated speed at 90 RPMLowest gear6.9 mphHighest gear13.7 mph

Uses front tire 20×1.95; rear size isn’t listed.

2011 GT Stomper 2036T · 14–28T · 7-speed
Lowest1.29:1Highest2.57:1Total range200%
Estimated speed at 90 RPMLowest gear6.9 mphHighest gear13.7 mph

Uses front tire 20×1.95; rear size isn’t listed.

How it works

Ratio = front teeth ÷ rear teeth. Hub gears also include the hub’s internal ratio. A 400% range means the highest ratio is four times the lowest.

Speeds are estimates from tire size and pedal cadence. Actual speeds vary.

Try other gearing

Complete specification tableShows different published values and gaps where a bicycle lacks data. Different wording reflects source language, not necessarily different components. Swipe for more columns.
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Specification
2009 GT Stomper 20
2011 GT Stomper 20
Overview
Model Year
2009
2011
Brand
GT
GT
Model
Stomper 20
Stomper 20
Bicycle Type
Juvenile
Juvenile mountain bike, suspension
Original MSRP
$299.99
Not documented
Colors
Red
Gloss black, Ano White
Sizes
One size fits all
—
Weight
—
—
Frameset
Frame Construction
TIG-welded
Aluminum
Frame Material
GT 6061 Aluminum
6061 aluminum
Fork
SR Suntour M2000, 75mm travel
SR M 2000, 75mm travel
Fork Material
Alloy, single crown
—
Drivetrain
Component Group
Juvenile Mix
Mountain Mix
Shifters
SRAM MRX
Shimano Revo twist
Rear Derailleur
Shimano TX30
Shimano TX-30
Crankset
Cotterless aluminum, 36 teeth
Cotterless aluminum, 36T teeth
Bottom Bracket
3-piece
3 piece square taper
Cassette
Shimano
Shimano
Rear Cogs
7-speed, 14 - 28 teeth
7-speed, 14 - 28 teeth
Chain
Uniglide
Uniglide
Pedals
High Impact nylon platform
High Impact nylon platform
Brakes
Brakes
Tektro linear brakes, alloy short reach levers
Tektro linear pull brakes, alloy short reach levers
Cockpit & Contact Points
Headset
1 1/8" Aheadset
Aheadset
Handlebar
Riser
Alloy Riser
Handlebar Extensions
Not included
Not included
Stem
Alloy
Ahead alloy ATB
Saddle
Boys Anatomic MTN
Boys Anatomic MTN
Seatpost
Alloy
Alloy
Wheels & Tires
Hubs
Alloy
Alloy QR
Rims
Aluminum
ATB aluminum
Spokes
14ga. (2.0mm)
Stainless, 14ga. (2.0mm)
Spoke Nipples
Brass
Brass
Front Tire
20 x 1.95" Kenda ATB Dual purpose
20 x 1.95" Kenda ATB Dual purpose
Wheel Size
20" wheels
20" wheels

Historical specifications are presented as an archival reference. Components may have varied by market, size, or production run.

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