From breakaways to the final sprint. On flat roads climbs or descents. The reengineered Propel Advanced SL cuts through wind and maximizes watts optimizing your energy through every dimension of speed: top-end speed instant speed and sustained speed. Key Performance Factors Instant Speed In the moments when explosive speed matters most—launching an attack chasing a break or sprinting for the finish line—the new Propel Advanced SL is quicker and more dynamic than ever. The whole system sheds 355g from the previous generation and is also more efficient with 14.2% more torsional stiffness and 14.8% greater pedaling stiffness—so you feel instantaneous reaction when you make your move. Sustained Speed Engineered for full-bike compliance the new Propel Advanced SL delivers a significantly smoother ride when you’re rolling in the group or piling up training miles. The Vector integrated seatpost has 25% greater compliance compared to the previous generation. The fork and integrated cockpit absorb bumps and vibrations up front with 15% added compliance. And additional tire clearance allows for high-volume tires up to 32mm further smoothing out the ride to help you maintain higher speeds with less fatigue. Top-End Speed The frameset cockpit wheels and tires form a unified system that lowers total resistance when you’re pushing high speeds in the wind—whether you’re on a solo break taking pulls at the front or powering away on a climb. The AeroSystem frame and integrated cockpit minimize drag while the new CADEX Max 50 WheelSystem and Aero tires reduce rolling resistance. Calculating linear aero drag wheel rotating drag and tire rolling resistance it all adds up to a total energy savings of 18.4 watts. AeroSystem Shaping Technology Through CFD Computational Fluid Dynamics and wind-tunnel data engineers optimize each tube shape to deliver superior aerodynamic performance. Advanced SL Composite Technology Professional Grade raw carbon fiber is woven in our composite factory to produce our lightest stiffest and highest quality frames. This is the technology used by Giant’s pro racers in almost every cycling discipline. Integrated Seatpost Designed as a key performance factor in the overall frameset the integrated seatpost saves up to 40 grams compared to standard composite posts while improving aerodynamics and adding road-smoothing compliance. Tubeless System Fewer flat tires. Greater traction. Less rolling resistance and a smoother faster ride. Giant’s Tubeless System makes it easier than ever to experience all these benefits. Colours Prism Pearl Frame Advanced SL-grade Composite 12x142mm thru-axle integrated seatpost disc Fork Advanced SL-grade composite full-composite OverDrive Aero steerer 12x100mm thru-axle disc Handlebar Giant Contact SLR 0 Aero Integrated XS:380/360mm S:380/360mm M:400/370mm M/L:400/370mm L:420/390mm XL:420/390mm Stem Giant Contact SLR 0 Aero Integrated XS:80mm S:90mm M:100mm M/L:110mm L:110mm XL:120mm Seatpost Advanced SL-grade composite integrated design -5/+15mm offset Saddle CADEX AMP Pedals PEDALS NOT SUPPLIED Shifters Shimano Dura-Ace Di2 ST-R9270 Front Derailleur Shimano Dura-Ace Di2 FD-R9250 Rear Derailleur Shimano Dura-Ace Di2 RD-R9250 Brakes Shimano Dura-Ace Di2 hydraulic Shimano RT-CL900 rotors [F]160mm [R]140mm Brake Levers Shimano Dura-Ace Di2 Cassette Shimano Dura-Ace 12-speed 11x30 Chain Shimano Dura-Ace CN-M9100 Crankset Shimano Dura-Ace 36/52 XS:165mm S:165mm M:170mm M/L:170mm L:172.5mm XL:172.5mm Bottom Bracket CEMA Ceramic press fit Rims CADEX Max 50 WheelSystem [F]50mm [R]50mm Hubs [F] CADEX R3 Aero Hub CenterLock 12mm thru-axle [R] CADEX R3-C48 Aero Hub 48T ratchet driver CenterLock 12mm thru-axle Spokes CADEX Super Aero Carbon Tyres CADEX Aero tubeless 700x28c 28mm folding Extras Computer mount water bottle cages tubeless prepared 32mm max tire size