Velopedia Bicycle Archive
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Compare published geometry, gearing and specifications for up to three bicycles.
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1 of 2 bicycles
At a glance
Key differences
Supported differences are shown below. Data limitations are labeled separately.
- Data limitation
No geometry is recorded for 2001 GT Pro Series Micro and 1999 GT Pro Series Micro.
Gearing comparison
Lower gears help on climbs. Higher gears suit higher speeds.
RPM
RPM = pedal turns per minute.
Ratio2.35:1
Speed unavailable: wheel or tire size is missing or unclear.
Ratio2.35:1
Speed unavailable: wheel or tire size is missing or unclear.
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.
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.
Specification
2001 GT Pro Series Micro
1999 GT Pro Series Micro
Overview
Model Year
2001
1999
Brand
GT
GT
Model
Pro Series Micro
Pro Series Micro
Bicycle Type
BMX
BMX
Original MSRP
$309.99
$292.99
Colors
Blue/Yellow
Chrome-Plated
Sizes
Pro
Boys
Weight
—
—
Frameset
Frame Construction
TIG-welded
Welded
Frame Material
4130 chromoly
Chromoly
Fork
GT Mini
GT
Fork Material
Chromoly, unicrown crown
Chromoly, unicrown crown
Drivetrain
Crankset
GT Junior 3-piece aluminum, 40 teeth
GT 3-piece aluminum, 40 teeth
Bottom Bracket
Three piece, sealed
Three piece, sealed
Rear Cogs
1-speed, 17 teeth
1-speed, 17 teeth
Chain
KMC, 1/2 x 1/8"
1/2 x 1/8"
Pedals
GT Mini Aluminum
BMX bear trap style, aluminum
Brakes
Brakes
Tektro Mini V-Brake rear brakes, Dia-Compe MX-22 rear levers
Dia-Compe MX122, mini rear brakes, Tektro alloy linear-pull rear levers
Cockpit & Contact Points
Headset
1" threadless Aheadset
1" threadless Aheadset
Handlebar
GT Micro aluminum
GT Jr aluminum
Handlebar Extensions
Not included
—
Stem
GT Mini Piston
GT Mini Piston
Saddle
GT one piece mini
Uni mini
Seatpost
GT integrated aluminum
1 pc. seat/alloy post
Wheels & Tires
Hubs
GT Mohawk
GT Mohawk
Rims
Alex aluminum, 28-hole
Weinmann Mini Zac, 28-hole
Spokes
Stainless steel, 15g
1.8mm straight gauge
Spoke Nipples
Brass nipples
Brass nipples
Front Tire
20 x 1 1/8" GT AA Pro
20 x 1 3/8" GT AA Pro
Wheel Size
20" wheels
20" wheels
Historical specifications are presented as an archival reference. Components may have varied by market, size, or production run.