Bicycle Archive · Specification report

Bicycle comparison

2007 GT Power Series Expert · 2008 GT Power Series Expert

Specification	2007 GT Power Series Expert	2008 GT Power Series Expert
Overview
Model year	2007	2008
Brand	GT	GT
Model	Power Series Expert	Power Series Expert
Bicycle type	BMX	BMX
Archive ID	16138	13605
Original MSRP	$399.99	$399.99
Colors	Blue/Black	Silver/Black
Sizes	20" wheel	Expert 19.75"TT
Frameset
Frame construction	TIG-welded	TIG-welded
Frame material	6061 T6 aluminum	GT 6061 Aluminum
Fork	GT BMX design	GT Aluminum
Fork material	Aluminum, unicrown crown	Aluminum, unicrown crown
Rear shock	N/A	N/A
Drivetrain
Component group	BMX Mix	BMX
Shifters	N/A	N/A
Front derailleur	N/A	N/A
Rear derailleur	N/A	N/A
Crankset	GT forged aluminum 3pc., 42 teeth	GT forged aluminum 3pc.
Bottom bracket	Euro cartridge	Euro
Rear cogs	1-speed, 14 teeth	1-speed, 14, 15, 16 teeth
Chain	KMC Z610	KMC Z610
Pedals	Jr. BMX platform, aluminum	Jr. BMX platform, aluminum
Brakes
Brakes	Alloy side-pull caliper front/Tektro, 926AL rear brakes, Tektro 316A levers	—
Cockpit & contact points
Headset	1 1/8" integrated 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	GT Mini BMX
Seatpost	Aluminum, 22.2mm (7/8 inch) diameter	Aluminum
Wheels & tires
Hubs	Front: GT BMX sealed, Rear: BMX Race cassette	Front: GT aluminum sealed, Rear: Joy Tech cassette
Rims	Sun M13-II, 32-hole	Alex DA-22, 32-hole
Spokes	15ga. (1.8mm) straight gauge	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

Manufacturer-published archive data. Confirm exact standards and dimensions before ordering parts or performing service. Generated by Velopedia on November 12, 2026.