Giant Defy Advanced Pro 1

Name: Giant Defy Advanced Pro 1
Brand: Giant

2026 RoadEndurance Manufacturer page

Suspension: Rigid
Wheels: 700c
Drivetrain: 2 × 12 33–46t / 10–36t
Gear range: 502%
Frame: Carbon
Brakes: Hydraulic disc

Rider height by size (cm)

Size guide

XS 160–168
SM 166–174
MD 172–180
MD/LG 178–186
LG 184–192
XL 190–198

Components

19 of 23 identified

Parts found in a manufacturer catalog show their brand, model and key numbers, and the steps show how precisely they are identified: brand, series, model, or the exact product. The info button has every detail and the text the manufacturer published.

Frame and fork

1 part

Frame

Advanced-grade Composite, 12x142mm thru-axle, disc Not identified

Suspension

2 parts

Fork

Advanced SL-grade Composite, full-composite OverDrive Aero steerer, 12x100mm thru-axle, disc Not identified
Rear shock

None

Drivetrain

8 parts

Brakes

2 parts

Wheels and tires

5 parts

Cockpit and contact points

6 parts

Grips

Stratus Lite 3.0 Not identified
Handlebar
- Giant
Pedals

PEDALS NOT SUPPLIED Not identified
Saddle
- Giant
Seatpost
- Giant
Stem
- Giant

Sizes and geometry

6 sizes Open in the geometry plotter

Enter your height to highlight matching ranges.

Size MD

Table

Reach 380mm

Stack 558mm

Wheelbase 998mm

Head angle 72.5°

Seat angle 73.5°

Every size is drawn to the same scale, in millimeters. Explanatory schematic on an assumed 700c wheel; exact published values are in the table below.

Size Reported by the manufacturer

Complete manufacturer geometry table 6 published sizes

Complete manufacturer geometry by size
Measurement
Frame
Reachmm	369	375	380	384	393	402
Stackmm	527	541	558	577	596	615
Top tube lengthmm	515	530	545	560	575	595
Seat tube lengthmm	410	445	480	515	535	565
Head tube lengthmm	125	135	150	175	195	215
Head tube angle	70.5°	71.8°	72.5°	72.5°	72.5°	72.5°
Seat tube angle	74.5°	74°	73.5°	73°	73°	73°
Chainstay lengthmm	420	420	420	420	420	420
Wheelbasemm	995	994	998	1010	1025	1040
Front centermm	587	586	590	600	615	630
Bottom bracket dropmm	75	75	75	70	70	70
Bottom bracket heightmm	261	261	261	266	266	266
Standover heightmm	705	733	762	796	814	841
Fork rakemm	50	50	50	50	50	50
Trailmm	71.6	63.4	58.6	58.6	58.6	58.6
Stack/reach ratio	1.43	1.44	1.47	1.50	1.52	1.53
Suspension and parts
Crank lengthmm	165	165	170	170	172.5	172.5
Handlebar widthmm	404	404	424	424	444	444
Stem lengthmm	80	90	100	100	110	110

Not published by the manufacturer: Front travel, Rear travel, Stem angle, Seatpost length and Dropper post travel.

Specifications

Frame and fork

Intended fit: Unisex
Frame material: Carbon
Fork material: Carbon

Suspension

Suspension configuration: Rigid

Drivetrain

Derived by Bikelake

Front chainrings: 2
Smallest chainring: 33
Largest chainring: 46
Rear sprockets: 12
Smallest sprocket: 10
Largest sprocket: 36
Lowest gear: 26.6 in
Highest gear: 133.4 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Hydraulic disc

Fit and controls

Seatpost: Rigid seatpost
Shifting: Electronic

Additional specifications

Power meter: SRAM Rival E1 DUB, 33/46 with Quark power meter XS:165mm, S:165mm, M:170mm, M/L:170mm, L:172.5mm, XL:172.5mm
Additional specification: Model display: Rival AXS
Additional specification: Model id: rival-axs
Tire clearance: Maximum tire width: 40c
Tire width: 32c
Wheel material: Carbon
Wheel size: 700c

Technical analysis

3 measures

How these figures sit among bicycles of the same class and model year. Context, not a ranking.

Lowest gear

26.6 gear inches

This value is below the central range for this class.

Cohort: Road / Endurance Model year: 2026
Sample: 479 bicycles with this information
Coverage: 79.3% of the class

Highest gear

133.4 gear inches

This value is within the central range for this class.

Cohort: Road / Endurance Model year: 2026
Sample: 479 bicycles with this information
Coverage: 79.3% of the class

Shifting

Electronic

327 of 604 bicycles with this information use electronic shifting.

Cohort: Road / Endurance Model year: 2026
Sample: 604 bicycles with this information
Coverage: 100.0% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 10.2 km/h
Highest gear: 51.1 km/h

Total gear range 502%

Technical details and class reference

These speeds describe the gearing at the selected cadence, not how fast you can ride.
Calculated from published gear-inch values and their wheel-size assumptions.
These gearing values describe the bicycle, not a selected frame size.
A 100% range means one ratio; 500% means the highest ratio is five times the lowest.
For e-bikes, motor assistance cutoff is not represented.

Gear-inch range

Lower gear-inch values travel less distance per pedal revolution; higher values travel farther.

This bicycle: 26.6–133.4 gear inches
Class reference (p10–p90): 26.6–139.2 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Road / Endurance Model year: 2026
Lowest gear: 479 bicycles with this information, 79.3% of the class
Highest gear: 479 bicycles with this information, 79.3% of the class

Lineup changes

The published facts that differ across this family's builds and from the same model a year earlier. Missing information never counts as zero.

Differences across 2026 builds
Specification	This bicycle Giant Defy Advanced Pro 1	Giant Defy Advanced 0	Giant Defy Advanced 1	Giant Defy Advanced 2	Giant Defy Advanced 3	Giant Defy Advanced Pro 0
Drivetrain
Smallest chainring	33	34	34	34	34	34
Largest chainring	46	50	50	50	50	50
Rear sprockets	12	12	12	12	10	12
Smallest sprocket	10	11	11	11	11	11
Largest sprocket	36	36	36	36	34	34
Lowest gear	26.6 in	27.4 in	27.4 in	27.4 in	29.0 in	29.0 in
Highest gear	133.4 in	131.8 in	131.8 in	131.8 in	131.8 in	131.8 in
Cockpit
Shifting	Electronic	Electronic	Electronic	Mechanical	Mechanical	Electronic
Other specifications
Power meter	SRAM Rival E1 DUB, 33/46 with Quark power meter XS:165mm, S:165mm, M:170mm, M/L:170mm, L:172.5mm, XL:172.5mmAdditional specification: Model display: Rival AXSAdditional specification: Model id: rival-axs	Not informed	Not informed	Not informed	Not informed	Shimano Ultegra, 34/50 with Giant Power Pro power meter XS:165mm, S:165mm, M:170mm, M/L:170mm, L:172.5mm, XL:172.5mmAdditional specification: Model display: Power ProAdditional specification: Model id: power-pro
Wheel material	Carbon	Carbon	Aluminum	Aluminum	Aluminum	Carbon
Bottom bracket standard	Not informed	BB86/BB92	BB86/BB92	BB86/BB92	BB86/BB92	BB86/BB92

Changes since 2025
Specification	2025 Giant Defy Advanced Pro 1	This bicycle Giant Defy Advanced Pro 1
Other specifications
Power meter	SRAM Rival D1 DUB, 33/46 with Giant Power Halo power meter XS:170mm, S:170mm, M:172.5mm, M/L:172.5mm, L:175mm, XL:175mmAdditional specification: Model display: Power HaloAdditional specification: Model id: power-halo	SRAM Rival E1 DUB, 33/46 with Quark power meter XS:165mm, S:165mm, M:170mm, M/L:170mm, L:172.5mm, XL:172.5mmAdditional specification: Model display: Rival AXSAdditional specification: Model id: rival-axs