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The Giant Defy Advanced Pro 0 is built to help you conquer your longest rides with comfort, confidence, and style.
The Giant Defy Advanced Pro 0 is built to help you conquer your longest rides with comfort, confidence, and style.
Giant

2025 Giant Defy Advanced Pro 0 Road Bike - Gloss Interstellar

£5,999.00
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 Pro 0 Road Bike - Gloss Interstellar

Season:2025

Brand:Giant

Code:9031014Interstellar

The Giant Defy Advanced Pro 0 Road Bike is the ultimate endurance road bike for long rides, steep climbs, and endless adventures. Designed for modern cyclists seeking comfort, control, and top-tier performance, this bike combines advanced technology with innovative features to deliver a smooth, efficient ride.

Lightweight Simplicity

The Advanced Composite frameset is one of the lightest in its class, offering a perfect balance of high-performance reactivity and long-distance comfort. Free from unnecessary gimmicks, the Defy Advanced Pro 0 provides a streamlined experience for serious endurance riders.

Engineered Compliance for Comfort

Built with Advanced-grade composite frame and fork, this bike is purposefully engineered to absorb road shocks and vibrations, reducing fatigue on long rides. The innovative D-Fuse seatpost and handlebar work as a system to further smooth out rough roads, enhancing rider comfort and efficiency.

Total Control and Stability

The all-new Contact D-Fuse handlebar features ergonomic shaping and an 8-degree flare for enhanced comfort and control on extended rides. Equipped with wide, hookless carbon rims (22.4mm inner width) optimised for high-volume tubeless tyres (up to 38mm), this bike ensures stable handling in crosswinds and varied terrains.

Cutting-Edge Technologies

  • Advanced Composite Technology: Crafted with Giant’s proprietary Modified Monocoque Construction, this frame delivers a superior stiffness-to-weight ratio for unmatched performance.
  • Compact Road Design: Featuring a sloping top tube for smaller triangles, this design creates a lighter, stiffer bike with perfect fit options for all riders.
  • D-Fuse Technology: The seatpost and handlebar absorb vibrations, allowing for smoother, longer rides.
  • OverDrive Aero: A D-shaped fork steerer tube with internally routed cables enhances aerodynamics and simplifies maintenance.
  • Tubeless System: Experience fewer flats, greater traction, and lower rolling resistance with Giant’s Tubeless System for a faster, smoother ride.
  • Power Pro Integration: Track your performance with precision using the integrated Power Pro system, offering reliable, easy-to-use data tracking to optimise your training.

Ride Farther, Ride Smarter

The Giant Defy Advanced Pro 0 is built to help you conquer your longest rides with comfort, confidence, and style. With its cutting-edge features and endurance-focused design, this bike is your ticket to pushing limits and achieving more on the road.

Technical Information
  • FRAME
    Advanced-Grade Composite, 12x142mm thru-axle, disc
  • FORK
    Advanced SL-Grade Composite, full-composite OverDrive Aero steerer, 12x100mm thru-axle, disc
  • HANDLEBAR
    Giant Contact SLR D-Fuse
  • GRIPS
    Stratus Lite 3.0
  • STEM
    Giant Contact SL AeroLight
  • SEATPOST
    Giant D-Fuse SLR, composite, -5/+15mm offset
  • SADDLE
    Giant Fleet SL
  • PEDALS
    PEDALS NOT SUPPLIED
  • SHIFTERS
    Shimano Ultegra Di2 ST-R8170 2x12
  • FRONT DERAILLEUR
    Shimano Ultegra Di2 FD-R8150
  • REAR DERAILLEUR
    Shimano Ultegra Di2 RD-R8150
  • BRAKES
    Shimano Ultegra Di2 hydraulic, Shimano RT-CL800 rotors [F]160mm, [R]160mm
  • BRAKE LEVERS
    Shimano Ultegra Di2
  • CASSETTE
    Shimano Ultegra, 12-speed, 11x34
  • CHAIN
    Shimano Ultegra
  • CRANKSET
    Shimano Ultegra, 34/50 with Giant Power Pro power meter
  • BOTTOM BRACKET
    Shimano, 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
  • TYRES
    CADEX Classics, tubeless, 700x32c (33.5mm), folding
  • EXTRAS
    Out front computer mount, fender mount, water bottle cages, factory tubeless set up
  • MAX TYRE CLEARANCE
    40mm
  • SIZES
    XS, 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 ft5'2" - 5'7"5'5" - 5'9"5'7" - 5'11"5'10" - 6'2"6'0" - 6'4"6'2" - 6'6"
Size in cm157 - 169cm165 - 175cm171 - 181cm177- 187cm183 - 193cm189 - 199cm
Bike SizeXSSMMLLXL

GEOMETRY

SizeXSSMMLLXL
Seat Tube Length410mm445mm480mm515mm535mm565mm
Seat Tube Angle74.5°74°73.5°73°73°73°
Top Tube Length515mm530mm545mm560mm575mm595mm
Head Tube Length120mm140mm150mm175mm195mm215mm
Head Tube Angle70.5°71.8°72.5°72.5°72.5°72.5°
Fork Rake50mm50mm50mm50mm50mm50mm
Trail71.6mm63.4mm58.6mm58.6mm58.6mm58.6mm
Wheelbase995mm994mm998mm1010mm1025mm1040mm
Chainstay Length420mm420mm420mm420mm420mm420mm
Bottom Bracket75mm75mm75mm70mm70mm70mm
Stack527mm541mm558mm577mm596mm615mm
Reach369mm375mm380mm384mm393mm402mm
Stand Over Height705mm733mm762mm796mm814mm841mm
Handlebar Width400mm400mm420mm420mm440mm440mm
Stem Length80mm90mm100mm100mm110mm110mm
Crank Length170mm170mm172.5mm172.5mm175mm175mm
Wheel Size700c700c700c700c700c700c
Professional Opinion
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