Go long. Go fast. Superlight and silky smooth, the flagship series of the new Defy range is back to reclaim its title as the pinnacle of endurance road. It’s the perfect choice for the sportive or gran fondo that’s circled on your calendar.

With greater lateral stiffness and a superlight frame weight of 785g, this is the most efficient Defy ever. The composite frame layup targets smooth-riding performance for long, hard rides. The new D-Fuse SLR seatpost is now lighter and engineered with 40 percent added compliance. The Contact SLR D-Fuse handlebar, also new, features similar D-shaped tubing as the seatpost to absorb shocks and vibrations, plus an 8-degree flare for improved ergonomics and control. Component highlights include the new Contact SLR AeroLight stem with integrated cable routing. A CADEX 36 WheelSystem with superlight hookless carbon rims delivers snappy yet stable handling and superior tubeless tyre performance.

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 SL-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: A 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.

Specifications

• Sizes: S, M, M/L, L, XL
• Colours: Golden Haze/Panther
• Frame: Advanced SL-grade composite, disc
• Fork: Advanced SL-grade composite, full-composite OverDrive Aero steerer, disc
• Shock: N/A
• Handlebar: Giant Contact SLR D-Fuse S:40cm, M:42cm, M/L:42cm, L:44cm, XL:44cm
• Grips: Stratus Lite 3.0
• Stem: Giant Contact SLR AeroLight S:90mm, M:100mm, M/L:100mm, L:110mm, XL:110mm
• Seatpost: Giant SLR D-Fuse, composite, -5/+15mm offset
• Saddle: Giant Fleet SLR
• Pedals: N/A
• Shifters: Shimano Ultegra Di2 ST-R8170
• Front Derailleur: Shimano Ultegra Di2 FD-R8150
• Rear Derailleur: Shimano Ultegra Di2 RD-R8150
• Brakes: Shimano Ultegra Di2 hydraulic, Shimano RT-CL800 rotors [F]160mm, [R]160mm
• Brake Levers: Shimano Ultegra Di2
• Cassette: Shimano Ultegra, 12-speed, 11x34
• Chain: Shimano Ultegra
• Crankset: Shimano Ultegra, 34/50 with Giant Power Pro power meter S:170mm, M:172.5mm, M/L:172.5mm, L:175mm, XL:175mm
• Bottom Bracket: Shimano, press fit
• Rims: Giant SLR 1 36 Carbon Disc WheelSystem
• Hubs: [F] Giant Low Friction Hub, CenterLock, 12mm thru-axle [R] Giant Low Friction Hub, 30t ratchet driver, CenterLock, 12mm thru-axle
• Spokes: Sapim CX-Ray
• Tyres: Giant Gavia Fondo 0, tubeless, 700x32c (33.5mm), folding
• Extras: computer mount, fender mount, water bottle cages, factory tubeless set up, 38mm max tyre size
• Fender/Chainguard: Compatible with RGX 38 fender (sold separately)
• Weight: The most accurate way to determine any bike’s weight is to have your local dealer weigh it for you. Many brands strive to list the lowest possible weight, but in reality weight can vary based on size, finish, hardware and accessories. All our bikes are designed for best-in-class weight and ride quality.

Geometry