Inspection
Frame condition
Inspect the frame, fork, welds, and high-stress areas for cracks, dents, or prior repairs.
GT
2008 GT Power Series Ultra Box
Value Guide market data · 2008 GT Power Series Ultra Box
12-month trend
— %
Direction and magnitude, not judgment
vs. category average
— %
No category comparison available
Price over time - 2008 GT Power Series Ultra Box
Values based on actual sales data. Enter your bike's specifics to get a precise valuation.
All Power model years
2015$409 - $475▼ 45% vs. 2008
2014$437 - $508▼ 41% vs. 2008
2013$456 - $529▼ 39% vs. 2008
2012$460 - $535▼ 38% vs. 2008
2011$512 - $594▼ 31% vs. 2008
2010$465 - $540▼ 37% vs. 2008
2009$791 - $918▲ 6% vs. 20082008$744 - $864Currently viewing
2007$260 - $302▼ 65% vs. 2008
2004$651 - $756▼ 12% vs. 2008
2003$698 - $810▼ 6% vs. 2008
2001$372 - $432▼ 50% vs. 20081999$262 - $305▼ 65% vs. 2008
1998$298 - $346▼ 60% vs. 20082008 Power Series Ultra Box lineup
Overview
About this bike
2008 GT Power Series Ultra Box value depends on condition, original build, frame material, service history, and current buyer demand.
Specifications
Frameset
- Frame Tubing Material
- GT 6061-T6-aluminum
Drivetrain
- Groupset
- 2008 GT Power Series Ultra Box
- Chain
- Alex Supra Dome
Brakes
- Brakeset
- Tektro BX-25
Cockpit
- Saddle
- SDG I-Fly
- Handlebar
- GT BMX chromoly
- Handlebar Stem
- GT BMX Race
Wheels & Tires
- Hubs
- Front: GT BMX; Rear: JoyTech
- Tires
- Kenda Small Block Eight: Front: 20 x 2.1; Rear: 20 x 1.75
- Spoke Brand
- 14g
Pedals
- Pedals
- GT, aluminum platform
Frame sizing
XS4'10"-5'2"
S5'2"-5'6"
M5'6"-5'10"
L5'10"-6'2"
XL6'2"-6'6"
M highlighted as most common resale size. Sourced from catalog metadata.
Geometry
- Stack
- Varies by size
- Reach
- Varies by size
- Wheelbase
- Varies by size
Industry standard. Sourced from catalog metadata.
What to check when buying used
Inspection
Drivetrain wear
Check chain stretch, cassette teeth, chainrings, and shifting under load before negotiating price.
Inspection
Wheel condition
Inspect rims, hubs, spokes, and bearing play; ask about the tire age and any prior wheel rebuilds.
Inspection
Service history
Ask for service records covering bearings, brakes, drivetrain, and any frame or fork warranty work.