- Frame
- 6061-T6 aluminum
- Brakes
- Tektro 926AL Mini-V rear brakes, Tektro 316A rear levers
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Compare published geometry, gearing and specifications for up to three bicycles.
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At a glance
Key differences
Supported differences are shown below. Data limitations are labeled separately.
- Data limitation
No geometry is recorded for 2009 GT Power Series Expert and 2008 GT Power Series Expert.
Gearing comparison
Lower gears help on climbs. Higher gears suit higher speeds.
RPM
RPM = pedal turns per minute.
Gearing unavailable for this size.
Gearing unavailable for this size.
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
2009 GT Power Series Expert
2008 GT Power Series Expert
Overview
Model Year
2009
2008
Brand
GT
GT
Model
Power Series Expert
Power Series Expert
Bicycle Type
BMX
BMX
Original MSRP
$469.99
$399.99
Colors
White/Black
Silver/Black
Sizes
19.75" TT
Expert 19.75"TT
Weight
—
—
Frameset
Frame Construction
TIG-welded
TIG-welded
Frame Material
6061-T6 aluminum
GT 6061 Aluminum
Fork
GT BMX
GT Aluminum
Fork Material
Aluminum/chromoly steerer, unicrown crown
Aluminum, unicrown crown
Drivetrain
Component Group
BMX
BMX
Crankset
GT Tubular Cr-Mo 3pc., 42 teeth
GT forged aluminum 3pc.
Bottom Bracket
Euro Sealed
Euro
Cassette
Freewheel
—
Rear Cogs
1-speed, 13, 14, 15, 16, 17, 18 teeth
1-speed, 14, 15, 16 teeth
Chain
KMC Z610
KMC Z610
Pedals
Jr. BMX platform design, aluminum body, cr-mo axle
Jr. BMX platform, aluminum
Brakes
Brakes
Tektro 926AL Mini-V rear brakes, Tektro 316A rear levers
—
Cockpit & Contact Points
Headset
1 1/8" FSA Orbit IS-2
1 1/8" FSA Orbit IS-2
Handlebar
GT BMX aluminum
GT BMX aluminum
Handlebar Extensions
Not included
Not included
Stem
GT BMX Race
GT BMX Race
Saddle
GT Mini BMX
GT Mini BMX
Seatpost
Aluminum, 22.2mm diameter
Aluminum
Wheels & Tires
Hubs
Front: GT aluminum sealed, Rear: Joy Tech BMX cassette
Front: GT aluminum sealed, Rear: Joy Tech cassette
Rims
Alex DA-22, 32-hole
Alex DA-22, 32-hole
Spokes
15ga. (1.8mm)
15ga. (1.8mm)
Spoke Nipples
Aluminum nipples
Aluminum nipples
Front Tire
20 x 1 3/8" Kenda Small Block Eight
20" Kenda Small Block Eight
Wheel Size
20" wheels
20" wheels
Historical specifications are presented as an archival reference. Components may have varied by market, size, or production run.