Inspection
Frame condition
Inspect the frame, fork, welds, and high-stress areas for cracks, dents, or prior repairs.
GT
2015 GT Grade Carbon 105
Value Guide market data · 2015 GT Grade Carbon 105
12-month trend
— %
Direction and magnitude, not judgment
vs. category average
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Price over time - 2015 GT Grade Carbon 105
Values based on actual sales data. Enter your bike's specifics to get a precise valuation.
All Grade model years
2015 Grade Carbon 105 lineup
Overview
About this bike
2015 GT Grade Carbon 105 value depends on condition, original build, frame material, service history, and current buyer demand.
Specifications
Frameset
- Fork
- GT carbon road disc w/tapered steerer, 15mm thru-axle
- Frame
- GT Enduroad carbon frame w/removable fender bridge, 135mm rear spacing
Drivetrain
- Groupset
- 2015 GT Grade Carbon 105
- Crankset
- Shimano 105
- Bottom Bracket
- BB30
- Rear Cogs
- Shimano 105, 11-speed
- Front Derailleur
- Shimano 105
- Rear Derailleur
- Shimano 105
- Chainrings
- 52/36
- Shifters
- Shimano R685
Brakes
- Brake Levers
- Shimano R685, hydraulic
- Brakes
- Shimano R685 hydraulic disc
Cockpit
- Seatpost
- FSA SL-K, carbon
- Saddle
- Fizik Aliante VS
- Stem
- Aluminum
- Handlebars
- GT DropTune aluminum, 14-degree flare
- Tape/Grips
- Cork
Wheels & Tires
- Hubs
- DT Swiss 240 Disc
- Tires
- Continental Grand Sport Race, 700 x 28c
- Spokes
- Stainless steel
Accessories
- Rims/Wheels
- Stan's NoTubes Grail Road
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.
Inspection
Carbon inspection
Tap test the frame, fork, seatpost, and bars for cracks; verify no impact damage near dropouts.
Inspection
Brake hoses & cables
Check hydraulic line bleed, cable housing wear, and confirm rotors are within spec.