- Frame
- 6061-T6 aluminum
- Brakes
- Tektro 930AL linear pull rear brakes, Tektro 319 rear levers
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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 XL and 2011 GT Power Series XL.
- Data limitation
Only 2011 GT Power Series XL has enough published drivetrain data for gearing calculations.
Gearing comparison
Lower gears help on climbs. Higher gears suit higher speeds.
RPM
RPM = pedal turns per minute.
Gearing unavailable for this size.
Ratio2.75:1
Estimated speed at 90 RPMGear
Rear tire: 20×1.75.
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 XL
2011 GT Power Series XL
Overview
Model Year
2009
2011
Brand
GT
GT
Model
Power Series XL
Power Series XL
Bicycle Type
BMX
BMX
Original MSRP
$599.99
Not documented
Colors
White/Black
White/blue
Sizes
21" TT
—
Weight
—
—
Frameset
Frame Construction
TIG-welded
Aluminum
Frame Material
6061-T6 aluminum
6061-T6 aluminum
Fork
GT BMX
GT BMX
Fork Material
Aluminum/chromoly steerer, unicrown crown
Steel
Drivetrain
Component Group
BMX
BMX Mix
Crankset
TruVativ Racing XR, 44 teeth
CroMO 3 piece, 44T teeth
Bottom Bracket
TruVativ Gigapipe DH ISIS
Euro
Cassette
Freewheel
ACS Claws
Rear Cogs
1-speed, 13, 14, 15, 16, 17, 18 teeth
16 teeth
Chain
KMC Z610HX
KMC Z610HX
Pedals
GT Alum Platform with cr-mo spindles
GT BMX platform
Brakes
Brakes
Tektro 930AL linear pull rear brakes, Tektro 319 rear levers
—
Cockpit & Contact Points
Headset
1 1/8" Semi integrated
1 1/8" Semi integrated
Handlebar
GT BMX Race
GT BMX Race
Handlebar Extensions
Not included
Not included
Stem
GT BMX Race
Cold forged GT drop
Saddle
GT BMX Pro Lite
GT BMX "ProLite"
Seatpost
GT aluminum micro adjust, 27.0mm diameter
Aluminum micro-adjust, 27.0mm diameter
Wheels & Tires
Hubs
Front: GT aluminum sealed, Rear: Joy Tech BMX cassette
Front: GT BMX branded, Rear: Joy Tech 21
Rims
Alex Supra Dome, 36-hole
Jalco DDY, 36-hole
Spokes
14ga. (2.0mm)
14ga. (2.0mm)
Spoke Nipples
Brass
Brass
Front Tire
20 x 2.10" Kenda Small Block Eight
20 x 1.95" Kenda Small Block 8
Rear Tire
20 x 1.75" Kenda Small Block Eight
20 x 1.75" Kenda Small Block 8
Wheel Size
20" wheels
20" wheels
Historical specifications are presented as an archival reference. Components may have varied by market, size, or production run.