Giant Defy Advanced SL 1

2025 RoadEndurance Manufacturer page

Giant Defy Advanced SL 1, color Moonstone

Price: Not published

Prices shown first for United States
United Kingdom: £8,499 Last known price
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

SM 165–175
MD 171–181
MD/LG 177–187
LG 183–193

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 SL-Grade Composite, 12x142mm thru-axle, integrated seatpost, disc Not identified

Suspension

1 part

Fork

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

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

4 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 4 published sizes

Complete manufacturer geometry by size
Measurement
Frame
Reachmm	375	380	384	393
Stackmm	541	558	577	596
Top tube lengthmm	530	545	560	575
Seat tube lengthmm	445	480	515	535
Head tube lengthmm	140	150	175	195
Head tube angle	71.8°	72.5°	72.5°	72.5°
Seat tube angle	74°	73.5°	73°	73°
Chainstay lengthmm	420	420	420	420
Wheelbasemm	994	998	1010	1025
Front centermm	586	590	600	615
Bottom bracket dropmm	75	75	70	70
Bottom bracket heightmm	261	261	266	266
Standover heightmm	733	762	796	814
Fork rakemm	50	50	50	50
Trailmm	63.4	58.6	58.6	58.6
Stack/reach ratio	1.44	1.47	1.50	1.52
Suspension and parts
Crank lengthmm	170	172.5	172.5	175
Handlebar widthmm	400	420	420	440
Stem lengthmm	90	100	100	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 Force D2 DUB, 33/46 with power meter
Additional specification: Model display: Force AXS
Additional specification: Model id: force-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: 2025
Sample: 546 bicycles with this information
Coverage: 81.8% of the class

Highest gear

133.4 gear inches

This value is within the central range for this class.

Cohort: Road / Endurance Model year: 2025
Sample: 546 bicycles with this information
Coverage: 81.8% of the class

Shifting

Electronic

356 of 663 bicycles with this information use electronic shifting.

Cohort: Road / Endurance Model year: 2025
Sample: 663 bicycles with this information
Coverage: 99.4% 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: 2025
Lowest gear: 546 bicycles with this information, 81.8% of the class
Highest gear: 546 bicycles with this information, 81.8% 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 2025 builds
Specification	This bicycle Giant Defy Advanced SL 1	Giant Defy Advanced 0	Giant Defy Advanced 1	Giant Defy Advanced 2	Giant Defy Advanced Pro 0	Giant Defy Advanced Pro 1
Frame
Bicycle weight	Not informed	8.2 kg	8.67 kg	8.65 kg	7.48 kg	Not informed
Drivetrain
Smallest chainring	33	34	34	34	34	33
Largest chainring	46	50	50	50	50	46
Smallest sprocket	10	11	11	11	11	10
Largest sprocket	36	36	36	36	34	36
Lowest gear	26.6 in	27.4 in	27.4 in	27.4 in	29.0 in	26.6 in
Highest gear	133.4 in	131.8 in	131.8 in	131.8 in	131.8 in	133.4 in
Cockpit
Shifting	Electronic	Electronic	Electronic	Mechanical	Electronic	Electronic
Other specifications
Power meter	SRAM Force D2 DUB, 33/46 with power meterAdditional specification: Model display: Force AXSAdditional specification: Model id: force-axs	Not informed	Not informed	Not informed	Shimano Ultegra, 34/50 with Giant Power Pro power meter XS:170mm, S:170mm, M:172.5mm, M/L:172.5mm, L:175mm, XL:175Additional specification: Model display: Power ProAdditional specification: Model id: power-pro	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
Wheel material	Carbon	Carbon	Aluminum	Aluminum	Carbon	Carbon
Bottom bracket standard	Not informed	BB86/BB92	BB86/BB92	BB86/BB92	BB86/BB92	Not informed

Changes since 2024
Specification	2024 Giant Defy Advanced SL 1	This bicycle Giant Defy Advanced SL 1
Drivetrain
Smallest chainring	34	33
Largest chainring	50	46
Smallest sprocket	11	10
Largest sprocket	34	36
Lowest gear	29.0 in	26.6 in
Highest gear	131.8 in	133.4 in
Other specifications
Bottom bracket standard	BB86/BB92	Not informed
Power meter	Shimano Ultegra, 34/50 with Giant Power Pro power meter S:170mm, M:172.5mm, M/L:172.5mm, L:175mm, XL:175mmAdditional specification: Model display: Power ProAdditional specification: Model id: power-pro	SRAM Force D2 DUB, 33/46 with power meterAdditional specification: Model display: Force AXSAdditional specification: Model id: force-axs