Inspection
Frame condition
Inspect the frame, fork, welds, and high-stress areas for cracks, dents, or prior repairs.
GT
2003 GT Bump
Value Guide market data · 2003 GT Bump
12-month trend
— %
Direction and magnitude, not judgment
vs. category average
— %
No category comparison available
Price over time - 2003 GT Bump
Values based on actual sales data. Enter your bike's specifics to get a precise valuation.
All Bump model years
2003 Bump lineup
Overview
About this bike
2003 GT Bump value depends on condition, original build, frame material, service history, and current buyer demand.
Specifications
Frameset
- Frame Construction
- TIG-welded
- Frame Tubing Material
- Chromoly main triangle/hi-tensile steel rear stays
- Fork Brand & Model
- GT
- Fork Material
- Chromoly, unicrown crown
- Rear Shock
- Not applicable
Drivetrain
- Groupset
- 2003 GT Bump
- Component Group
- Not applicable
- Shift Levers
- Not applicable
- Crankset
- GT 3-piece chromoly, 39 teeth
- Rear Cogs
- 1-speed, 14 teeth
- Chain
- KMC 410, 1/2 x 3/16inch
Brakes
- Brakeset
- Tektro 907A U-brake rear brakes, Tektro 274A rear levers
Cockpit
- Seatpost
- Steel micro-adjust
- Saddle
- GT Jr Jump, 9mm rails
- Handlebar
- GT BMX
- Handlebar Stem
- GT Piston
- Headset
- 1 1/8inch threadless Victor VP-A74F
Wheels & Tires
- Hubs
- Aluminum, 14mm axle
- Rims
- Alex G22, 36-hole
- Tires
- 20 x 2.10inch GT LP-4
- Spoke Brand
- Stainless steel, 14ga. (2.0mm) straight gauge
- Spoke Nipples
- Brass nipples
Pedals
- Pedals
- GT Johnson design
Accessories
- Colors
- Blue, Yellow
- BB Shell Width
- American
- Extensions
- Not applicable
Weight & Sizing
- Sizes
- One
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.