The 2027 Giant Defy Advanced 2 is a lightweight composite endurance road bike designed to deliver efficient performance, controlled handling, and reduced fatigue during long days in the saddle. Its Advanced-grade composite frame and full-composite fork are engineered specifically for endurance riding, balancing responsive acceleration with compliance over rough pavement.
Giant’s D-Fuse handlebar and composite D-Fuse seatpost work together to absorb road shocks and vibration. The Contact SL D-Fuse handlebar also features ergonomic shaping and an 8-degree flare to provide additional comfort and control during extended rides.
A Shimano 105 drivetrain pairs a compact 50/34T crankset with an 11-36T cassette for a broad gearing range. Shimano 105 hydraulic disc brakes use 160mm front and rear rotors, while the Giant P-R1 Disc alloy wheelset is fitted with 700 x 32C Giant Gavia Fondo 1 folding tubeless tires.
With clearance for tires up to 40mm wide, the Defy Advanced 2 is equipped to handle smooth pavement, rough roads, and cobbled surfaces while maintaining the efficiency expected from a performance-oriented road bike.
Key Features
– Lightweight Advanced-grade composite frame
– Advanced-grade composite fork with a full-composite OverDrive steerer
– Endurance-focused construction designed to balance responsive performance with all-day comfort
– D-Fuse handlebar and seatpost system designed to absorb road shocks and vibration
– Giant Contact SL D-Fuse handlebar with ergonomic shaping
– 8-degree handlebar flare for comfort and control
– Shimano 105 drivetrain
– Compact 50/34T crankset
– Wide-range 11-36T cassette
– Shimano 105 hydraulic disc brakes
– 160mm front and rear brake rotors
– Giant P-R1 Disc alloy wheelset
– Giant Gavia Fondo 1 folding tubeless tires
– Maximum tire clearance of 40mm
– Tubeless-prepared wheel and tire system
– 12mm front and rear thru-axles
Frame and Fork
– Frame material: Advanced-grade composite
– Rear axle: 12 x 142mm thru-axle
– Brake compatibility: Disc
– Fork material: Advanced-grade composite
– Fork steerer: Full-composite OverDrive
– Front axle: 12 x 100mm thru-axle
– Fork brake compatibility: Disc
Drivetrain
– Shifters: Shimano 105
– Front derailleur: Shimano 105
– Rear derailleur: Shimano 105
– Crankset: Shimano 105
– Chainrings: 50/34T
– Cassette: Shimano 105
– Cassette range: 11-36T
– Chain: KMC X12L-1
– Bottom bracket: Shimano press fit
Brakes
– Brake type: Shimano 105 hydraulic disc
– Brake levers: Shimano 105
– Front rotor: Shimano SM-RT64, 160mm
– Rear rotor: Shimano SM-RT64, 160mm
Wheels and Tires
– Wheelset: Giant P-R1 Disc
– Rim material: Alloy
– Front rim dimension: 25mm
– Rear rim dimension: 25mm
– Hubs: Giant alloy
– Axles: 12mm thru-axles
– Spokes: Sapim
– Tires: Giant Gavia Fondo 1
– Tire size: 700 x 32C
– Installed tire width: 33.5mm
– Tire construction: Folding
– Tire setup: Tubeless
– Maximum tire clearance: 40mm
– Extras: Tubeless prepared
Cockpit and Contact Points
– Handlebar: Giant Contact SL D-Fuse
– Handlebar flare: 8 degrees
– Grips: Stratus Lite 3.0
– Stem: Giant Contact AeroLight
– Seatpost: Giant D-Fuse composite
– Seatpost offset: 14mm
– Saddle: Giant Approach
Technology
– Advanced Composite Technology uses Giant’s high-performance-grade raw carbon material to create a high stiffness-to-weight ratio.
– The front triangle is assembled and molded as one continuous piece through Giant’s Modified Monocoque Construction process.
– D-Fuse Technology combines the seatpost and handlebar into a system designed to reduce road shocks and vibration.
– Compact Road Design uses a downward-sloping top tube to create smaller front and rear frame triangles for reduced weight, increased stiffness, and a broader range of fit options.
– Giant’s Tubeless System is designed to improve traction, reduce rolling resistance, create a smoother ride, and lower the likelihood of flat tires.
– The OverDrive steerer and oversized headset-bearing system are designed to provide precise front-end steering performance.
