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2018 Giant Defy Advanced Pro 1

Launched at $3,470

Own a 2018 Giant Defy Advanced Pro 1?

Track its value in your garage, or list it for sale locally in a few taps.

What a used one is worth

New

$1,510

$913 to $1,879

Like new

$1,434

$867 to $1,785

Excellent

$1,359

$822 to $1,691

Good

$1,132

$685 to $1,409

Fair

$830

$502 to $1,034

For parts

$453

$274 to $564

From the launch price, aged to 2026 and adjusted for condition. Guidance from our catalog, not an appraisal.

Fork: Advanced-grade composite, Full-composite OverDrive 2 steerer
Stem: Giant Contact SL
Tires: Giant Gavia AC 1 Tubeless, 700x25, Folding
Brakes: Shimano Ultegra, hydraulic disc, 140mm
Saddle: Contact SL Neutral
Wheels: Giant SLR 1 DBL WheelSystem; 30mm deep, 23mm wide, Tubeless, Full composite
Cassette: Shimano Ultegra 11x34, 11-Speed
Crankset: Shimano Ultegra, 34/50
Seatpost: Giant D-Fuse SL composite
Shifters: Shimano Ultegra Hydraulic
Handlebar: Giant Contact SL, 31.8mm
Rear derailleur: Shimano Ultegra

L: Reach mm: 390; Stack mm: 605; Chainstay mm: 420; Wheelbase mm: 1022; Head angle deg: 72.5; Seat angle deg: 73
M: Reach mm: 377; Stack mm: 567; Chainstay mm: 420; Wheelbase mm: 995; Head angle deg: 72.5; Seat angle deg: 73.5
S: Reach mm: 373; Stack mm: 546; Chainstay mm: 420; Wheelbase mm: 990; Head angle deg: 72; Seat angle deg: 74
XL: Reach mm: 398; Stack mm: 624; Chainstay mm: 420; Wheelbase mm: 1037; Head angle deg: 72.5; Seat angle deg: 72.5
XS: Reach mm: 365; Stack mm: 523; Chainstay mm: 420; Wheelbase mm: 983; Head angle deg: 71; Seat angle deg: 74.5
M/L: Reach mm: 381; Stack mm: 586; Chainstay mm: 420; Wheelbase mm: 1007; Head angle deg: 72.5; Seat angle deg: 73

MSRP as listed on the Giant Group US product page for this model year, accessed 2026-09-21.

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