Velopedia Bicycle Archive

2000 GT Pro Series Micro

Original specifications: 20" wheels · legacy reference geometry.

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At a glance

Archive #45970

Model year: 2000
Category: BMX
Original MSRP: $304.00
Sizes: Micro
Colors: Racing Blue/Black
Geometry: Legacy reference
In this record: 22 specifications · original MSRP · geometry

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Identification clues

2000 archived details

Published colors: Racing Blue/Black
Frame: 4130 chromoly
Original equipment: N/A

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

Original build4130 chromoly · 20" wheels

Manufacturer catalog

Published sizes and colors

1 size · 1 color

Manufacturer-published sizes and colors; availability and exact size/color pairings may vary by market or production run.

Published sizes

Micro

Published colors

Racing Blue/Black

Frameset

Frame Construction	TIG-welded
Frame Material	4130 chromoly
Fork	GT Mini
Fork Material	Chromoly, unicrown crown

Drivetrain

Crankset	GT 3-piece aluminum, 40 teeth
Bottom Bracket	Three piece, sealed
Rear Cogs	1-speed, 17 teeth
Chain	KMC, 1/2 x 1/8"
Pedals	GT aluminum platform

Brakes

Brakes	Lee Chi linear-pull rear brakes, Dia-Compe MX-22 rear levers

Cockpit & Contact Points

Headset	1" threadless Aheadset
Handlebar	GT Micro aluminum
Handlebar Extensions	Not included
Stem	GT Mini Piston
Saddle	Uni style
Seatpost	Uni style, 20.4mm diameter

Wheels & Tires

Hubs	GT Mohawk
Rims	Alesa alloy, 28-hole
Spokes	Stainless steel, 2.0mm
Spoke Nipples	Brass nipples
Front Tire	20 x 1 1/8" GT AA Pro
Wheel Size	20" wheels

Geometry

Legacy reference · 5 measurements

Historical measurements. Frame size unknown.

All geometry measurementsLegacy reference · 5 measurements

Measurement	Legacy reference
Top tube	415.8 mm
Head-tube angle	72°
Seat-tube angle	72.3°
Chainstay / rear center	325.1 mm
Wheelbase	793.8 mm

Frame size not recorded.

Gearing

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

Published build40T · 17T · 1-speed

Ratio2.35:1

Speed unavailable: wheel or tire size is missing or unclear.

Add your rear tire size to calculate speed

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

Find replacement parts

Original specifications

Brake pads · Original

Lee Chi linear-pull rear brakes

Dia-Compe MX-22 rear levers

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Parts and service referenceQuick reference before buying parts

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

Front tire: 20 x 1 1/8" GT AA Pro
Drivetrain: 1-speed
Bottom bracket / shell: Three piece, sealed

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

2000 GT Pro Series Micro