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The Giant Defy Advanced 0 is a high-performance endurance road bike, engineered for efficiency, comfort, and control.
The Giant Defy Advanced 0 is a high-performance endurance road bike, engineered for efficiency, comfort, and control.
Giant

2025 Giant Defy Advanced 0 Road Bike - Ocean Twilight

£3,699.00
Pre-Order

With Pre-Order, you can purchase the latest items added to our store in advance of them arriving with us.

Your Pre-Order is prioritised (at no additional charge); meaning that as soon as the product arrives with us, we can wrap it straight back up; ready for collection via Click & Collect or despatch to you — it often never even hits the stock room shelves!

Pre-Launch

With Pre-Launch, the date when we expect to receive the product ourselves is still a little too hazy to be confident in accepting Pre-Orders.

So, instead, you can submit your email address against the item you are interested in and we will email you as soon as stock arrives on the system.

Estimated Delivery & Collection Dates

Estimated Delivery & Collection Dates are given on Pre-Order and Pre-Launch products. They are for indication purposes only and can change at any time without notice.

The dates we provide are based on indications given by our suppliers. Whenever we get updated information from our suppliers we will endeavour to update the Estimated Delivery & Collection Dates provided on product pages.

We estimate this will be ready for despatch to you or collection via Click & Collect on Undetermined

2025 Giant Defy Advanced 0 Road Bike - Ocean Twilight

Season:2025

Brand:Giant

Code:9031010BluTwilight

Ride Stronger, Longer, and Smoother with the Ultimate Endurance Road Machine

The Giant Defy Advanced 0 is a high-performance endurance road bike, engineered for efficiency, comfort, and control. Featuring an advanced composite frame and innovative components, it smooths out rough roads and minimises rider fatigue, so you can conquer long distances with ease.

Lightweight Efficiency

The Advanced-grade composite frameset is one of the lightest in its class, delivering exceptional stiffness-to-weight ratio. Designed with functional simplicity, this bike achieves the perfect balance of high-performance responsiveness and all-day riding comfort.

Engineered Compliance for Endurance

Specifically built for endurance road riding, the advanced composite frame and fork absorb road vibrations, ensuring a smooth and efficient ride. The D-Fuse technology in the seatpost and handlebar system works together to soak up road shocks, reducing rider fatigue over long rides.

Precision Control and Stability

The new Contact D-Fuse handlebar features ergonomic shaping and an 8-degree flare, providing comfort and enhanced control during long hours in the saddle. Wide alloy rims accommodate high-volume tubeless tyres (up to 38mm) for reliable traction, smooth handling, and stability on various surfaces, from asphalt to cobbled roads.

Advanced Composite Technology

Built in Giant’s own composite factory, the Advanced-grade carbon frame is designed using Modified Monocoque Construction, ensuring a seamless, stiff, and lightweight structure for ultimate performance.

Compact Road Design

Pioneered by Giant, the Compact Road Design features a sloping top tube, creating smaller front and rear triangles for a lighter, stiffer, and more responsive bike. This design also allows riders of all sizes to achieve a perfect fit.

D-Fuse Technology

The D-Fuse seatpost and handlebar system work in harmony to absorb shocks and road vibrations, letting you ride farther and faster with improved comfort.

OverDrive Aero

The D-shaped fork steerer tube and aerodynamic spacers in the headtube deliver better aerodynamics and easy maintenance with internally routed cables, enhancing both performance and aesthetics.

Giant Tubeless System

The Giant Tubeless System reduces the risk of flat tyres, improves traction, and lowers rolling resistance, ensuring a smoother, faster ride with unmatched reliability.

  • Lightweight and Stiff: One of the lightest frames in its category for efficient performance.
  • All-Day Comfort: Engineered compliance reduces fatigue for long endurance rides.
  • Control and Stability: Optimised tubeless setup and advanced ergonomics for predictable handling.
  • Cutting-Edge Technology: Featuring Giant's innovative D-Fuse, OverDrive Aero, and Tubeless systems.

Whether you're taking on long-distance road rides, gran fondos, or mixed-surface adventures, the Giant Defy Advanced 0 Road Bike delivers the perfect combination of performance, comfort, and control.

Technical Information
  • FRAME
    Advanced-Grade Composite, 12x142mm thru-axle, disc
  • FORK
    Advanced-Grade Composite, full-composite OverDrive steerer, 12x100mm thru-axle, disc
  • HANDLEBAR
    Giant Contact SL D-Fuse
  • GRIPS
    Stratus Lite 3.0
  • STEM
    Giant Contact AeroLight
  • SEATPOST
    Giant D-Fuse, composite, 14mm offset
  • SADDLE
    Giant Approach
  • PEDALS
    PEDALS NOT SUPPLIED
  • SHIFTERS
    Shimano 105 Di2 2x12
  • FRONT DERAILLEUR
    Shimano 105 Di2
  • REAR DERAILLEUR
    Shimano 105 Di2
  • BRAKES
    Shimano 105 hydraulic, Shimano SM-RT70 rotors [F]160mm, [R]160mm
  • BRAKE LEVERS
    Shimano 105 Di2
  • CASSETTE
    Shimano 105, 12-speed, 11x36
  • CHAIN
    KMC X12L-1
  • CRANKSET
    Shimano 105, 34/50
  • BOTTOM BRACKET
    Shimano, press fit
  • RIMS
    Giant SLR 2 36 Carbon Disc WheelSystem
  • HUBS
    [F] Giant Low Friction Hub, CenterLock, 12mm thru-axle, [R] Giant Low Friction Hub, 3-pawl 30t driver, CenterLock, 12mm thru-axle
  • SPOKES
    Sapim
  • TYRES
    Giant Gavia Fondo 1, tubeless, 700x32c (33.5mm), folding
  • EXTRAS
    Fender mount, water bottle cages, factory tubeless set up, 40mm max tyre size
  • MAX TYRE CLEARANCE
    40mm
  • SIZES
    S, M, ML, L, XL
As with any product, specification is subject to change without prior notification. You are advised to confirm current specification before buying. Please note that this bike does not come with pedals.
Sizing Information

SIZING

Size in ft5'5" - 5'9"5'7" - 5'11"5'10" - 6'2"6'0" - 6'4"6'2" - 6'6"
Size in cm165 - 175cm171 - 181cm177- 187cm183 - 193cm189 - 199cm
Bike SizeSMMLLXL

GEOMETRY

SizeSMMLLXL
Seat Tube Length445mm480mm515mm535mm565mm
Seat Tube Angle74°73.5°73°73°73°
Top Tube Length530mm545mm560mm575mm595mm
Head Tube Length140mm150mm175mm195mm215mm
Head Tube Angle71.8°72.5°72.5°72.5°72.5°
Fork Rake50mm50mm50mm50mm50mm
Trail63.4mm58.6mm58.6mm58.6mm58.6mm
Wheelbase994mm998mm1010mm1025mm1040mm
Chainstay Length420mm420mm420mm420mm420mm
Bottom Bracket75mm75mm70mm70mm70mm
Stack541mm558mm577mm596mm615mm
Reach375mm380mm384mm393mm402mm
Stand Over Height733mm762mm796mm814mm841mm
Handlebar Width400mm420mm420mm440mm440mm
Stem Length90mm100mm100mm110mm110mm
Crank Length170mm172.5mm172.5mm175mm175mm
Wheel Size700c700c700c700c700c
Professional Opinion
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