Giant Defy Advanced Pro 0 Road Bike 2025 in Interstellar

With effortless efficiency and quiet compliance, this lightweight endurance road machine helps you ride stronger and longer. The composite frame and purpose-built components smooth out rough roads and minimise fatigue.

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-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
New Contact D-Fuse handlebar features ergonomic shaping and an 8-degree flare for comfort and control on all-day rides. Wide, alloy rims are optimised for high-volume tubeless tyres (up to 38mm), providing predictable handling and stability from asphalt to cobbles.

Key Features & Benefits:

• Carbon Fibre Frame:Super lightweight & durable.
• Shimano Ultegra Di2 Groupset:Quality electronic shifting.
• Giant WheelSystem:With CADEX tubeless tyres for increased grip & reduced risk of punctures.

Full Specification:

• Frame:Advanced-Grade Composite, 12x142mm thru-axle, disc
• Fork:Advanced SL-Grade Composite, full-composite OverDrive Aero steerer, 12x100mm thru-axle, disc
• Number of Gears:24
• Gear Shifters:Shimano Ultegra Di2 ST-R8170 2×12
• Chainset:Shimano Ultegra, 34/50 with Giant Power Pro power meter
• Chainrings:34/50T
• Rear Cassette:Shimano Ultegra, 12-speed, 11×34
• Chain:Shimano Ultegra
• Front Derailleur:Shimano Ultegra Di2 FD-R8150
• Rear Derailleur:Shimano Ultegra Di2 FD-R8150
• Bottom Bracket:Shimano, press fit
• Pedals:Not supplied:Shop pedals here
• Rims:Giant SLR 1 36 Carbon Disc WheelSystem
• Front Hub:Giant Low Friction Hub, CenterLock, 12mm thru-axle
• Rear Hub:Giant Low Friction Hub, 30t ratchet driver, CenterLock, 12mm thru-axle
• Front Tyre:CADEX Classics, tubeless, 700x32c (33.5mm), folding
• Rear Tyre:CADEX Classics, tubeless, 700x32c (33.5mm), folding
• Brakes:Shimano Ultegra Di2 hydraulic, Shimano RT-CL800 rotors [F]160mm, [R]160mm
• Handlebars:Giant Contact SLR D-Fuse
• Handlebar Grips:Stratus Lite 3.0
• Stem:Giant Contact SL AeroLight
• Saddle:Giant Fleet SL
• Seatpost:Giant D-Fuse SLR, composite, -5/+15mm offset
• Accessories:Out front computer mount, fender mount, water bottle cages, factory tubeless set up, 40mm max tyre size
• Weight:N/A