From bare thread to finished frame, every Giant composite bicycle is designed, engineered and hand-built in our own factory. Using state-of-the art materials and manufacturing techniques, Advanced-Grade Composite framesets offer outstanding weight, stiffness and compliance characteristics.
Defy Advanced Pro
Defy Limits
Go longer, go faster, and smooth out rough roads with a frameset and integrated parts that are engineered for compliance. From gran fondos to epic solo rides, this lightweight composite bike is everything you need for your most challenging rides.
Key Performance Factors
Engineered compliance
Advanced Carbon Composite frame is specifically engineered for endurance road riding, delivering a smoother ride quality and less fatigue on long rides. The D-Fuse seat post and handlebar system work seamlessly with the frame to absorb road shocks and vibrations.
Total control
Seamless disc brake integration, including flat mounts and 12mm front and rear thru-axles, produces more consistent braking power for better control, even in wet weather and on rough roads.
Versatility
Endurance road geometry, added tyre clearance (up to 35c) and disc-brake integration allow you to tackle a variety of roads and conditions, from smooth tarmac to rugged country lanes and mountain passes.
Highlights
With the perfect blend of stiffness and compliance, Defy Advanced Pro delivers a smooth, fast ride quality even on rough roads. Its innovative technologies include a D-Fuse composite seatpost and Contact SLR D-Fuse composite handlebar. These integrated cockpit components work as a system to add compliance and reduce road shocks and vibrations. The Advanced-grade composite frame is also integrated for disc brakes, with flat-mount disc brake tabs and 12mm front and rear thru-axles, plus clearance for high-volume tires up to 35mm. The oversized and tapered OverDrive 2 steerer tube boosts cornering precision, while the MegaDrive downtube and PowerCore bottom bracket deliver precise handling and class-leading pedaling efficiency.
Technologies & Features
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.
Compliance Tuned Technology
Specific composite layup and tube shaping, including ultra-thin and flattened seatstays, a low seatstay/seattube junction, and thin, slightly curved fork legs combine for a balanced, compliant ride quality and reduced rider fatigue.
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.
OverDrive 2
The most advanced steerer tube technology in today’s Giant bikes. Designed to offer unprecedented front-end steering performance, the system’s oversized headset bearings (1 1/2” lower, 1 1/4” upper) and tapered steerer tube work in harmony to provide supreme steering stiffness.
RideSense
Giant’s chainstay integrated, wireless data transmitter. The removable transmitter sends wheel speed and cadence information directly to any ANT+ compatible computer.
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.
Gallery
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