Inspection
Frame condition
Inspect the frame, fork, welds, and high-stress areas for cracks, dents, or prior repairs.
Giant
2018 Giant Defy Advanced 1
Value Guide market data · 2018 Giant Defy Advanced 1
12-month trend
6%
Direction and magnitude, not judgment
vs. category average
— %
No category comparison available
Price over time - 2018 Giant Defy Advanced 1
Values based on actual sales data. Enter your bike's specifics to get a precise valuation.
All Defy model years
2024$11,160 - $12,960▲ 31% vs. 2018
2023$6,045 - $7,020▼ 29% vs. 2018
2022$6,045 - $7,020▼ 29% vs. 2018
2021$6,045 - $7,020▼ 29% vs. 2018
2020$7,254 - $8,424▼ 15% vs. 2018
2019$5,175 - $6,010▼ 39% vs. 2018
2018$8,537 - $9,914Currently viewing
2017$4,371 - $5,076▼ 49% vs. 2018
2016$7,719 - $8,964▼ 10% vs. 2018
2015$9,579 - $11,124▲ 12% vs. 2018
2014$8,161 - $9,477▼ 4% vs. 2018
2013$6,417 - $7,452▼ 25% vs. 2018
2012$6,417 - $7,452▼ 25% vs. 2018
2011$5,441 - $6,318▼ 36% vs. 2018
2010$5,162 - $5,994▼ 40% vs. 2018
2009$3,302 - $3,834▼ 61% vs. 20182018 Defy Advanced 1 lineup
Overview
About this bike
2018 Giant Defy Advanced 1 value depends on condition, original build, frame material, service history, and current buyer demand.
Specifications
Frameset
- Frame
- Carbon / Advanced-Grade CompositeBB Standard:BB86/BB92, Press FitColors:Carbon Smoke/ Yellow/ Charcoal; Neon Red/ Blue/ Black
- Fork
- Carbon / Advanced-Grade Composite, Alloy OverDrive Steerer
Drivetrain
- Drivetrain
- 2 × 11
- Groupset
- Ultegra, 105
- Bottom Bracket
- Shimano, PressFit RS500
- Rear Derailleur
- Shimano Ultegra
- Front Derailleur
- Shimano Ultegra
- Crank
- Shimano FC-RS510, 34/50
- Shifters
- Shimano 105
- Cassette
- Shimano Ultegra 11x34, 11-Speed
- Chain
- KMC X11EL-1
Brakes
- Brakes
- Giant Hydraulic Disc / Giant Conduct Hydraulic Disc BrakeType:Giant Hydraulic Disc
- Brake Levers
- Shimano 105
Cockpit
- Stem
- Giant Connect
- Handlebar
- Giant Contact
- Saddle
- Contact (Neutral)
- Seatpost
- Giant D-Fuse CompositeType:Rigid
Wheels & Tires
- Wheels
- 700c Aluminum
- Rims
- Giant PR-2 Disc, Tubeless
- Spokes
- Sapim Race 14/15g
- Front Hub
- Giant Performance Tracker Road Disc, Sealed Bearings, 12mm axles, 28h
- Rear Hub
- Giant Performance Tracker Road Disc, Sealed Bearings, 12mm axles, 28h
- Tires
- Giant Gavia AC 1 Tubeless, 700x25, Folding
Frame sizing
SMManufacturer sizing
MDManufacturer sizing
MD/LGManufacturer sizing
LGManufacturer sizing
XLManufacturer sizing
MD/LG highlighted as most common resale size. Sourced from catalog metadata.
Geometry
- Stack
- 586
- Reach
- 381
- Top Tube Length
- 560
- Seat Tube Length
- 515
- Chainstay Length
- 420
- Wheelbase
- 1,007
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.