Inspection
Frame condition
Inspect the frame, fork, welds, and high-stress areas for cracks, dents, or prior repairs.
GT
2015 GT Air
Value Guide market data · 2015 GT Air
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Price over time - 2015 GT Air
Values based on actual sales data. Enter your bike's specifics to get a precise valuation.
All Air model years
2015 Air lineup
Overview
About this bike
2015 GT Air value depends on condition, original build, frame material, service history, and current buyer demand.
Specifications
Frameset
- Fork:
- GT BMX Design, Hi-Ten 31.8- 28.6mm Tapered O.D. Blades, 3/8" Axle Dropouts.
- Fork
- GT Dirt/Street Design high-tensile steel
- Fork Brand & Model
- GT Dirt/Street Design high-tensile steel
- Frame
- GT Dirt Design high-tensile steel
- Frame Construction
- GT Dirt Design high-tensile steel
Drivetrain
- Groupset
- 2015 GT Air
- Crank:
- GT Tubular CR-MO 3Pc., 165mm Arms, Cold Forged CR-MO 19mm x 8T Spline Spindle, 25T Steel Chain Wheel GT Design
- Bottom Bracket
- American
- Chainrings
- 25T
- Crankset
- GT forged 1-piece, 165mm
- Freewheel
- 9T
Brakes
- Brake Levers:
- Alloy
- Brake Levers
- Aluminum
- Brakes
- Tektro U-brake
Cockpit
- Handlebar:
- H:8." (203mm), W:27.5" (700mm), w/ 19mm Crossbar, 2�up, 10� back
- Stem:
- GT INVERT Top Load Design With Cold Forged Clamp, 40mm Ext
- Grips:
- GT Wings Flanged 130mm Single Compound
- Headset:
- 1-1/8" Thread less, Steel
- Saddle:
- railed saddle
- Seat Post:
- Steel 25.4mm x 200mm
- Grips
- GT Wings, flanged
- Handlebar
- GT
- Saddle
- GT Embossed Leather
- Seatpost
- Steel
- Stem
- GT Top Load
Wheels & Tires
- Rims:
- Aluminum Single Wall, 36 Hole
- Tires:
- 20"
- Hubs:
- Steel Body, Loose Ball 3/8" Heat Treated Axle, 36 Hole
- Hubs
- GT Steel
- Spokes
- 14-gauge
- Tires
- GT Air Bag, 20 x 2.1
- Wheel Set
- Aluminum
Pedals
- Pedals:
- GT Low Profile Mid Size Platform Design, PP Material, Boron Axle
- Pedals
- GT 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.