Velopedia Bicycle Archive

2009 GT El Centro 16

Original specifications: BMX drivetrain · 16" wheels.

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At a glance

Archive #18793

Model year: 2009
Category: BMX
Original MSRP: $329.99
Sizes: 17" TT
Colors: Royal Blue
In this record: 24 specifications · original MSRP

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Identification clues

2009 archived details

Published colors: Royal Blue
Frame: High Tensile Steel
Original equipment: BMX

Clues, not proof of model year. Colors vary and components may have been replaced.

Original buildHigh Tensile Steel · BMX · 16" wheels

Historical catalog variants

Archived sizes and colors

1 item record

Item-level catalog entries recovered from Velopedia’s original bicycle archive. They document how this model was listed historically; they do not identify the frame size associated with legacy reference geometry or indicate current availability.

Published sizes

17" TT

Published colors

Royal Blue

View 1 archived size/color combination

Size	Color
17" TT	Royal Blue

Historical catalog evidence. Exact specifications and naming may vary by market, production run or manufacturer revision.

Frameset

Frame Construction	TIG-welded
Frame Material	High Tensile Steel
Fork	GT Freestyle
Fork Material	Hi-tensile steel/chromoly steerer, unicrown crown

Drivetrain

Component Group	BMX
Crankset	GT Tubular Cr-Mo 3pc., 33 teeth
Bottom Bracket	Mid BB
Cassette	Freewheel
Rear Cogs	1-speed, 14 teeth
Chain	KMC Z510
Pedals	Jr. BMX platform design, aluminum body, molded in pins, cr-mo axle

Brakes

Brakes	Tektro 907 U-brake rear brakes, Tektro 299A rear levers

Cockpit & Contact Points

Headset	1 1/8" Tange Seiki Fatty 22
Handlebar	GT dirt/street Hi-Ten
Handlebar Extensions	Not included
Stem	GT Freestyle aluminum
Saddle	GT Slim
Seatpost	Aluminum, 25.4mm diameter

Wheels & Tires

Hubs	Front: Steel 3/8" axle, Rear: Steel 14mm axle
Rims	Alex G303, 36-hole
Spokes	14ga. (2.0mm)
Spoke Nipples	Brass
Front Tire	16 x 2.25" Kenda Kontact
Wheel Size	16" wheels

Gearing

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

Pedal cadence

RPM

Speed units

RPM = pedal turns per minute.

Published build33T · 14T · 1-speed

Ratio2.36:1

Estimated speed At 90 RPM Gear10.4 mph

Uses front tire 16×2.25; 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

Try your current gearingChanged tires or gears? Calculate your setup.

Your changes apply to this calculation. The archived build stays unchanged.

Gears Drivetrain

Front teeth Smallest rear teeth Largest rear teeth

Use up to three front tooth counts, separated by /. For one rear sprocket, enter the same count twice.

Rear tire

Rear tire marking

Apply the marking on your rear tire or edit its dimensions below. Older or fractional inch sizes need the ISO marking (e.g. 37-590).

Rim diameter (BSD, mm) Tire width (mm)

For 32-622, width is 32 mm and rim diameter is 622 mm. Use the rear tire on mixed-wheel bikes. Leave both fields empty to compare ratios only.

Cadence (RPM) Speed units

Gear, dimension and cadence changes update results automatically.

Gearing comparison
Measure	Original	Your setup
Lowest ratio	—	—
Highest ratio	—	—
Total range	—	—
Lowest-gear speed	—	—
Highest-gear speed	—	—

Speeds are estimates. These calculations do not establish component compatibility or available tire clearance.

Parts & serviceability

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Original specifications

Front tire · Original

16 x 2.25" Kenda Kontact

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Seatpost · Original

Aluminum

25.4mm diameter

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Rims · Original

Alex G303

36-hole

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Parts and service referenceQuick reference before buying parts

Archived specifications for reference. Check the fitted parts before ordering.

Front tire: 16 x 2.25" Kenda Kontact
Drivetrain: 1-speed
Seatpost diameter: 25.4 mm
Bottom bracket / shell: Mid BB

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Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.

2009 GT El Centro 16