Defy Advanced 1
OverviewAbout the Giant Defy Advanced 1
The Giant Defy Advanced 1 is a road bike, built on a carbon frame, listed at $4,999. A drop-bar bike built for sealed roads, speed and distance.
SizingWhat size Defy Advanced 1 do I need?
Enter your height to see the size Giant recommends.
| Size | Rider height | In feet |
|---|---|---|
| XS | 160 to 168 cm | 5 ft 3 in to 5 ft 6 in |
| S | 166 to 174 cm | 5 ft 5 in to 5 ft 9 in |
| M | 172 to 180 cm | 5 ft 8 in to 5 ft 11 in |
| ML | 178 to 186 cm | 5 ft 10 in to 6 ft 1 in |
| L | 184 to 192 cm | 6 ft 0 in to 6 ft 4 in |
| XL | 190 to 198 cm | 6 ft 3 in to 6 ft 6 in |
Rider heights from Giant's size chart. Height is a starting point: arm and leg length, flexibility and riding style all matter, so a test ride beats any chart. How bike sizing works.
SpecificationsWhat we know
- Brand
- Giant
- Category
- Road
- Frame
- Carbon
- Wheel size
- 700c
- Brakes
- Disc
- Frame sizes
- XS, S, M, ML, L, XL
- Price
- $4,999, RRP AUD (Giant Sydney)
Specs and pricing are listed in AUD and sourced from Australian retail listings. Confirm the current details and availability with the seller before purchase.
GeometrySize M
- Stack
- 558 mm
- Reach
- 380 mm
- Stack/reach
- 1.47
- Head angle
- 72.5 deg
- Seat angle
- 73.5 deg
- Wheelbase
- 998 mm
- Chainstay
- 420 mm
- BB drop
- 75 mm
- Standover
- 762 mm
- Fork rake
- 50 mm
GearingRatios
Ratios are derived from the chainrings and cassette. They describe the gearing, not any rider's ability.
Drivetrain & buildFull specification
- Groupset
- Shimano 105 Di2
- Shifting
- Electronic
- Drive
- 2x
- Speeds
- 12
- Crank
- Shimano 105
- Chainrings
- 34/50
- Cassette
- 11-36
- Brakes
- Shimano 105 Di2 hydraulic disc
- Rotors
- 160/160mm
- Wheelset
- Giant P-R2 Disc
- Stock tyre
- 700x32c
- Max tyre clearance
- 40 mm
- Tubeless
- Yes
- Fork material
- Advanced Composite carbon
- BB standard
- Press fit
Bike DNAWhat the numbers say
- Position
- Stack-to-reach 1.47 gives a balanced, endurance riding position.
- Steering
- A 72.5 deg head angle points to balanced steering.
- Climbing
- Lowest ratio 0.94 is a low climbing gear that still handles steep pitches.
Derived from the published geometry and gearing above. It describes the numbers, not a ride test.
BikeFinder Data Profile: geometry and specification researched from published sources (Giant geometry chart + retailer spec sheets + backfill 2026-09-27: giantsydney.com.au), verified 2026-09-03. This is a specification analysis, not a physical ride review.
Where to buyStockist
BikeFinder is an independent directory. We link to retailers; prices and stock are set by the seller and shown as at the date checked.
