
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.
This versatile road racer combines race-winning stiffness-to-weight with aerodynamic tube shaping and system integration. From the road-smoothing Variant seatpost to the composite WheelSystem, every piece is optimized as part of the system. The new OverDrive Aero steerer tube technology is combined with a Contact SL AeroLight stem and Contact SL handlebar to incorporate new internal cable routing for easy setup and adjustment, while integrated disc brakes and generous clearance for tires up to 33mm make it adaptable to all road conditions.

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This size guide is based on your body height. Sizing to be used as a reference only. Please check with a local authorized Giant dealer to determine the correct size.
The frameset, wheels, cockpit and other parts are engineered, developed and tested together to perform as a system. The all-new OverDrive Aero steerer tube technology is combined with a Contact SL AeroLight stem and Contact SL handlebar to incorporate internal cable routing that integrates the top cap, cables and spacers in a more aerodynamic, user-friendly setup.
Featuring a greater stiffness-to-weight ratio than the previous generation, along with new aero tube shaping and a lighter overall weight, this uncompromising race bike delivers explosive acceleration and unyielding pedaling stiffness. The result is race-winning performance in the moments that count.
All tube shapes are engineered and developed using Computational Fluid Dynamics (CFD) modeling and wind-tunnel testing. From the truncated ellipse shape of frameset tubing to a new cockpit design and component integration, it all adds up to a more streamlined profile that improves overall aero performance compared to the previous generation.
XS, S, M, M/L, L, XL
Ocean Twilight / Glare Chrome, Mercury / Glare Chrome
Advanced-Grade Composite, 12x142mm thru-axle, disc
Advanced SL-Grade Composite, full-composite OverDrive Aero steerer, 12x100mm thru-axle, disc
Giant Contact SLR XS:39/40cm, S:39/40cm, M:39/42cm, M/L:39/42cm, L:41/44cm, XL:41/44cm
Stratus Lite 2.0
Giant Contact SL AeroLight XS:80mm, S:90mm, M:100mm, M/L:110mm, L:110mm, XL:120mm
Giant Variant, composite, -5/+15mm offset
Giant Fleet SL
N/A
Shimano Ultegra Di2
Shimano Ultegra Di2 FD-R8150
Shimano Ultegra Di2 RD-R8150
Shimano Ultegra Di2 hydraulic, Shimano RT-CL800 rotors [F]160mm, [R]140mm
Shimano Ultegra Di2
Shimano Ultegra, 12-speed, 11x34
Shimano CN-M8100
Shimano Ultegra, 36/52 with Giant Power Pro power meter XS:170mm, S:170mm, M:172.5mm, M/L:172.5mm, L:175mm, XL:175mm
Shimano, press fit
Giant SLR 0 40 WheelSystem, [F]40mm, [R]40mm
[F] Giant Low Friction Hub, CenterLock, 12mm thru-axle [R] Giant Low Friction Hub, 40t ratchet driver, CenterLock, 12mm thru-axle
Giant Aero Carbon Spoke
CADEX Race GC, tubeless, 700x28c (28mm), folding
computer mount, Airway Eco Composite water bottle cage, tubeless prepared, 33mm max tire size
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.