Inspection
Frame condition
Inspect the frame, fork, welds, and high-stress areas for cracks, dents, or prior repairs.
GT
2005 GT Mach One Expert
Previous used estimate
$63 - $65
Actual value depends on condition, size, and local demand.
Value Guide market data · 2005 GT Mach One Expert
12-month projected trend
— %
Direction and magnitude, not judgment
vs. category average
— %
No category comparison available
Price over time - 2005 GT Mach One Expert
Values based on actual sales data. Enter your bike's specifics to get a precise valuation.
All Mach One model years
2021$174 - $179▲ 176% vs. 2005
2020$138 - $142▲ 119% vs. 2005
2019$124 - $128▲ 97% vs. 2005
2018$122 - $126▲ 94% vs. 2005
2017$109 - $112▲ 73% vs. 2005
2016$102 - $105▲ 62% vs. 2005
2015$99 - $102▲ 57% vs. 2005
2012$71 - $73▲ 13% vs. 2005
2011$71 - $73▲ 13% vs. 2005
2006$63 - $650% vs. 20052005$63 - $65Currently viewingCompare Mach One Expert models
1 modelsChoose a different build or frame style to see its value.
Overview
About this bike
2005 GT Mach One Expert value depends on condition, original build, service history, and current buyer demand.
Specifications
- Category
- BMX
- Component Hubs
- Front: steel, Rear: Shimano coaster
- Component Rims
- Aluminum
- Product Family
- Mach One
- Component Chain
- KMC Z410, 1/2 x 1/8inch
- Component Tires
- 20 x 1.75inch GT Brody Knob
- Component Pedals
- Resin platform
- Component Saddle
- GT Jr.
- Component Headset
- 1inch threaded steel
- Component Brakeset
- Tektro linear-pull rear brakes, Tektro 317A rear levers
- Component Cassette
- 1-speed, 16 teeth
- Component Crankset
- GT forged, 36 teeth
- Component Seatpost
- Aluminum micro-adjust, 22.2mm (7/8 inch) diameter
- Component Handlebar
- Hi-tensile steel
- Component Rear Shock
- Not applicable
- Component Spoke Brand
- 14ga. (2.0mm) straight gauge
- Component Shift Levers
- Not applicable
- Component Fork Material
- High-tensile steel, unicrown crown
- Component Spoke Nipples
- Brass nipples
- Component Handlebar Stem
- Aluminum
- Component Component Group
- Not applicable
- Component Fork Brand Model
- GT
- Component Frame Construction
- TIG-welded
- Component Frame Tubing Material
- Hi-tensile steel
- Frame Construction
- TIG-welded
- Frame Tubing Material
- Hi-tensile steel
- Fork Brand & Model
- GT
- Fork Material
- High-tensile steel, unicrown crown
- Rear Shock
- Not applicable
- Hubs
- Front: steel, Rear: Shimano coaster
- Rims
- Aluminum
- Tires
- 20 x 1.75inch GT Brody Knob
- Spoke Brand
- 14ga. (2.0mm) straight gauge
- Spoke Nipples
- Brass nipples
- Component Group
- Not applicable
- Brakeset
- Tektro linear-pull rear brakes, Tektro 317A rear levers
- Shift Levers
- Not applicable
- Crankset
- GT forged, 36 teeth
- Pedals
- Resin platform
- Chain
- KMC Z410, 1/2 x 1/8inch
- Seatpost
- Aluminum micro-adjust, 22.2mm (7/8 inch) diameter
- Saddle
- GT Jr.
- Handlebar
- Hi-tensile steel
- Handlebar Stem
- Aluminum
- Headset
- 1inch threaded steel
- Cassette
- 1-speed, 16 teeth
What to check when buying used
Inspection
Drivetrain wear
Check chain stretch, cassette teeth, chainrings, and shifting under load before negotiating price.
Inspection
Service history
Ask for service records covering bearings, brakes, drivetrain, and any frame or fork warranty work.