Giant Defy Advanced Pro 0 2025 Bike

Here's to long rides. Climb higher mountains, skip the shortcuts. This buttery smooth endurance road bike helps you do more of what you love.

Features

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, 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.

Technologies

• Advanced Composite Technology: Giant's High Performance Grade raw carbon material is used to produce this custom frame material in our own composite factory with a high stiffness-to-weight ratio. The front triangle of these framesets is assembled and molded as one continuous piece in a proprietary manufacturing process called Modified Monocoque Construction.
• 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 farther, faster.
• Over Drive Aero: Found inside the head tube of the Defy, Propel and TCR ranges, the D-shaped fork steerer tube and corresponding spacers provide an extremely aerodynamic, easier to service system of internally routed brake and derailleur cables.
• Tubeless System: Fewer flat tires. Greater traction. Less rolling resistance and a smoother, faster ride. Giant's Tubeless System makes it easier than ever to experience all these benefits.
• Power Pro: Tracking your power output and training data has never been easier. The Power Pro system delivers accurate information with an integrated system that's precise, reliable and simple to set up. The most effective training is smart training, so start training with power.

Specification

Frame and Forks

• Frame: Advanced-Grade Composite, 142 x 12mm Thru-Axle, Disc
• Forks: Advanced SL-Grade Composite, Full-Composite OverDrive Aero Steerer, 100 x 12mm Thru-Axle, Disc

Drivetrain

• Crankset: Shimano Ultegra, 34 / 50 Tooth With Giant Power Pro Power Meter
• Bottom Bracket: Shimano, Press Fit
• Rear Derailleur: Shimano Ultegra Di2 RD-R8150
• Front Derailleur: Shimano Ultegra Di2 FD-R8150
• Cassette: Shimano Ultegra, 12-Speed, 11 x 34 Tooth
• Chain: Shimano Ultegra

Braking/Shifting

• Shifters: Shimano Ultegra Di2 ST-R8170 2 x 12
• Front Brake: Shimano Ultegra Di2 Hydraulic, Shimano RT-CL800 Rotors 160mm
• Rear Brake: Shimano Ultegra Di2 Hydraulic, Shimano RT-CL800 Rotors 160mm
• Brake Levers: Shimano Ultegra Di2

Wheels

• Rims: Giant SLR 1 36 Carbon Disc WheelSystem
• Front Hub: Giant Low Friction Hub, CenterLock, 12mm Thru-Axle
• Rear Hub: Giant Low Friction Hub, 30 Tooth Ratchet Driver, CenterLock, 12mm Thru-Axle
• Spokes: Sapim
• Tyres: CADEX Classics, Tubeless, 700 x 32c, Folding

Finishing Kit

• Handlebars: 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: Not Included