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.
Advanced SL-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.
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 optimized for high-volume tubeless tires (up to 38mm), and a 36mm rim depth offers stable, predictable handling in crosswinds.
Ultralight Carbon Endurance Road Bike
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 tire performance.
Sizes : XS, S, M, M/L, L, XL
Colors : 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 XS:40cm, S:40cm, M:42cm, M/L:42cm, L:44cm, XL:44cm
Grips : Stratus Lite 3.0
Stem : Giant Contact SLR Aero Light XS:80mm, S:90mm, M:100mm, M/L:100mm, L:110mm, XL:110mm
Seatpost: Giant D-Fuse SLR, 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 XS:170mm, S:170mm, M:172.5mm, M/L:172.5mm, L:175mm, XL:175
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
Tires : Giant Gavia Fondo 0, tubeless, 700x32c (33.5mm), folding
Extras : computer mount, fender mount, water bottle cages, tubeless prepared, 38mm max tire size
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.
