• Giant 2025 Defy Advanced SL 1

Giant 2025 Defy Advanced SL 1

$9,498.00 $9,999.00
Colour
Size
Loading locations...

GO LONG. GO FAST. SUPERLIGHT AND SILKY SMOOTH, THE FLAGSHIP SERIES OF THE NEW DEFY RANGE IS BACK TO RECLAIM ITS TITLE AS THE PINNACLE OF ENDURANCE ROAD. IT’S THE PERFECT CHOICE FOR THE SPORTIVE OR GRAN FONDO THAT’S CIRCLED ON YOUR CALENDAR.

KEY PERFORMANCE FACTORS
Functional simplicity

Free of cumbersome gimmickry, the frameset is one of the lightest in its category. With a perfect balance of high-performance reactivity and all-day comfort, it offers a “less is more” experience for modern endurance road riding.

Engineered compliance

Advanced SL-grade composite frame and fork are specifically engineered for endurance road riding, delivering a smooth and efficient ride quality that minimises fatigue on long rides. The new D-Fuse components work together to further absorb road shocks and vibrations.

Total control

A new Contact D-Fuse handlebar features ergonomic shaping and an 8-degree flare for comfort and control on all-day rides. Wide, hookless carbon rims (22.4mm inner width) are optimised for high-volume tubeless tyres (up to 38mm), and a 36mm rim depth offers stable, predictable handling in crosswinds.

TECHS & FEATURES

×

ADVANCED COMPOSITE SL TECHNOLOGY

Giant’s Professional Grade raw carbon material is woven in our own composite factory using our most advanced engineering and construction methods including: Continuous Fibre Technology to add strength while reducing weight; Carbon Nanotube Technology resin to improve impact resistance; and Fusion Process for lighter, stronger frame junctions.

×

COMPACT ROAD DESIGN

Introduced by Giant with the professional Team ONCE in the 1990s, Compact Road revolutionized the look and feel of high-performance road bikes forever. A downward sloping toptube (from the headtube to the seattube) creates smaller front and rear triangles for a lighter, stiffer bike. It also makes it easier for riders of all sizes to have a perfect fit.

×

D-FUSE TECHNOLOGY

The D-Fuse seatpost and handlebar were designed to function as a system, absorbing road shocks and vibrations so you can ride further, faster.absorbing road shocks and vibrations so you can ride further, faster.

READ MORE

×

OVERDRIVE AERO

Found inside the head tube of the all-new Propel range, the D-shaped fork steerer tube and corresponding spacers provide an extremely aerodynamic, easier to service system of internally routed brake and derailleur cables.

×

POWERCORE

A massively oversized bottom-bracket/chainstay area features a fully integrated, 86-millimetre wide bottom-bracket design (92-millimetre wide for off-road bikes). Asymmetric chainstays provide additional stiffness on the driveside and stability on the non-driveside.

SIZING GUIDE AND GEOMETRY

Sizing to be used as a reference only. Please check with a local authorized dealer to determine the correct size.
Available sizes may vary from country to country.

XS
S
M
ML
L
XL
XS
S
M
ML
L
XL
ASEAT TUBE LENGTH (mm)
410
445
480
515
535
565
BSEAT TUBE ANGLE
74.5°
74.0°
73.5°
73.0°
73.0°
73.0°
CTOP TUBE LENGTH (mm)
515
530
545
560
575
595
DHEAD TUBE LENGTH (mm)
120
140
150
175
195
215
EHEAD TUBE ANGLE
70.5°
71.8°
72.5°
72.5°
72.5°
72.5°
FFORK RAKE (mm)
50
50
50
50
50
50
GTRAIL (mm)
71.6
63.4
58.6
58.6
58.6
58.6
HWHEELBASE (mm)
995
994
998
1010
1025
1040
ICHAIN STAY LENGTH (mm)
420
420
420
420
420
420
JBOTTOM BRACKET DROP (mm)
75
75
75
70
70
70
KSTACK (mm)
527
541
558
577
596
615
LREACH (mm)
369
375
380
384
393
402
MSTAND OVER HEIGHT (mm)
705
733
762
796
814
841
OSTEM LENGTH (mm)
80
80
90
100
110
110
PCRANK LENGTH (mm)
170
170
172.5
172.5
175
175
QWHEEL SIZE
700C
700C
700C
700C
700C
700C
SIZES
XS, S, M, M/L, L, XL
COLOURS
Moonstone
FRAME
Advanced SL-Grade Composite, 12x142mm thru-axle, integrated seatpost, disc
FORK
Advanced SL-Grade Composite, full-composite OverDrive Aero steerer, 12x100mm thru-axle, disc
SHOCK
N/A
HANDLEBAR
Giant Contact SLR D-Fuse XS:40/42cm, S:40/42cm, M:42/44cm, M/L:42/44cm, L:44/46cm, XL:44/46cm
GRIPS
Stratus Lite 3.0
STEM
Giant Contact SLR AeroLight XS:80mm, S:90mm, M:100mm, M/L:100mm, L:110mm, XL:110mm
SEATPOST
Giant D-Fuse SLR, composite, -5/+15mm offset
SADDLE
Giant Fleet SLR
PEDALS
N/A
SHIFTERS
SRAM Force AXS
FRONT DERAILLEUR
SRAM Force AXS
REAR DERAILLEUR
SRAM Force AXS
BRAKES
SRAM Force AXS hydraulic, SRAM CenterLine XR rotors [F]160mm, [R]160mm
BRAKE LEVERS
SRAM Force AXS hydraulic
CASSETTE
SRAM Force, 12-speed, 10x36
CHAIN
SRAM Force D1
CRANKSET
SRAM Force D2 DUB, 33/46 with power meter XS:170mm, S:170mm, M:172.5mm, M/L:172.5mm, L:175mm, XL:175mm
BOTTOM BRACKET
SRAM DUB, press fit
RIMS
Giant SLR 1 36 Carbon Disc WheelSystem
HUBS
[F] Giant Low Friction Hub, CenterLock, 12mm thru-axle, [R] Giant Low Friction Hub, 30t ratchet driver, CenterLock, 12mm thru-axle
SPOKES
Sapim
TIRES
CADEX Classics, tubeless, 700x32c (33.5mm), folding
EXTRAS
Computer mount, water bottle cages, tubeless prepared, 40mm max tyre size
MAX TIRE CLEARANCE
40mm
WEIGHT
The most accurate way to determine any bike’s weight is to have your local dealer weigh it for you. Many brands strive to list the lowest possible weight, but in reality weight can vary based on size, finish, hardware and accessories. All our bikes are designed for best-in-class weight and ride quality.

Featured collection