Giant Defy Advanced 2 Shimano 105 Road Bike 2027

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 minimize fatigue.
Key Performance Factors
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 minimizes 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 optimized for high-volume tubeless tires (up to 38mm), providing predictable handling and stability from asphalt to cobbles.
Tech & 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.
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.
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.
Overdrive
Giant’s original oversized fork steerer tube technology. Designed to provide precise front-end steering performance, the system’s oversized headset bearings (1 1/4” lower and 1 1/8” upper for road, 1 1/2” lower and 1 1/8” upper for mountain) and tapered steerer tube work in conjunction to provide optimal steering stiffness.
Specifications
Frame: Advanced-grade composite, 12 x 142 mm thru-axle, disc
Fork: Advanced-grade composite, full-composite OverDrive steerer, 12 x 100 mm thru-axle, disc
Shifters: Shimano 105
Front Derailleur: Shimano 105
Rear Derailleur: Shimano 105
Crankset: Shimano 105, 34/50T, XS: 165 mm, S: 165 mm, M: 170 mm, M/L: 170 mm, L: 172.5 mm, XL: 172.5 mm
Bottom Bracket: Shimano, press fit
Cassette: Shimano 105, 11-36T
Chain: KMC X12L-1
Brakes: Shimano 105 Di2 hydraulic disc
Brake Levers: Shimano 105
Rotors: Shimano SM-RT64, 160 mm front and 160 mm rear
Rims: Giant P-R1 Disc wheelset, alloy, 25 mm front and 25 mm rear
Hubs: Giant alloy, 12 mm thru-axle
Spokes: Sapim
Tyres: Giant Gavia Fondo 1, tubeless, 700 x 32c, 33.5 mm effective, folding
Tubeless Setup: Tubeless prepared
Maximum Tyre Clearance: 40 mm
Handlebar: Giant Contact SL D-Fuse, XS: 404/380 mm, S: 404/380 mm, M: 424/400 mm, M/L: 424/400 mm, L: 444/420 mm, XL: 444/420 mm
Stem: Giant Contact AeroLight, XS: 80 mm, S: 90 mm, M: 100 mm, M/L: 100 mm, L: 110 mm, XL: 110 mm
Grips: Stratus Lite 3.0
Seatpost: Giant D-Fuse composite, 14 mm offset
Saddle: Giant Approach


