Velopedia Bicycle Archive
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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 2005 GT Power Series XL and 2007 GT Power Series XL.
- Data limitation
Only 2005 GT Power Series XL has enough published drivetrain data for gearing calculations.
- Identity & price
2005 GT Power Series XL had an original MSRP $150 lower than 2007 GT Power Series XL.
Original MSRP is the published list price when new, not today’s used-bike value.
Gearing comparison
Lower gears help on climbs. Higher gears suit higher speeds.
RPM
RPM = pedal turns per minute.
Ratio2.75:1
Estimated speed at 90 RPMGear
Rear tire: 20×1.75.
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
2005 GT Power Series XL
2007 GT Power Series XL
Overview
Model Year
2005
2007
Brand
GT
GT
Model
Power Series XL
Power Series XL
Bicycle Type
BMX
BMX
Original MSRP
$399.99
$549.99
Colors
Factory Blue
Blue/Black
Sizes
Pro XL
20" wheel
Weight
—
—
Frameset
Frame Construction
TIG-welded
TIG-welded
Frame Material
6061 T6 aluminum
6061 T6 aluminum
Fork
GT
GT BMX design
Fork Material
Chromoly, unicrown crown
Aluminum/chromoly, unicrown crown
Drivetrain
Component Group
—
BMX Mix
Crankset
TruVativ Racing XR, 44 teeth
TruVativ Racing XR
Bottom Bracket
TruVativ GIGA pipe DH
TruVativ Gigapipe DH ISIS
BB Shell Width
68mm English
—
Rear Cogs
1-speed, 16 teeth
1-speed, 14 teeth
Chain
KMC Z610HX, 1/2 X 1/8"
KMC Z610HX
Pedals
Aluminum platform
GT BMX platform
Brakes
Brakes
Tektro 930AL rear brakes, Tektro 313A rear levers
Alloy side-pull caliper front/Tektro, 930AL rear brakes, Tektro 319 levers
Cockpit & Contact Points
Headset
1 1/8" integrated
1 1/8" integrated Semi integrated
Handlebar
Chromoly 2-piece
GT BMX Race Cruiser Cr-mo
Handlebar Extensions
—
Not included
Stem
Aluminum
GT BMX Race
Saddle
GT BMX Pro Lite
GT Pro Lite
Seatpost
Aluminum micro-adjust
GT Micro adjust, 27.0mm diameter
Wheels & Tires
Hubs
GT aluminum
Front: GT BMX sealed, Rear: BMX Race cassette
Rims
Alex DX-2418
Sun Rhyno Lite XL
Spokes
14ga. (2.0mm) straight gauge
14ga. (2.0mm) straight gauge
Spoke Nipples
Brass nipples
Brass nipples
Front Tire
20 x 2.125" IRC Siren
20 x 2.10" Kenda Small Block Eight
Rear Tire
20 x 1.75" IRC Siren
20 x 1.75" 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.