The Giant Propel Advanced SL 1 2027 bikewe’re introducing atEscapais built with racing DNA and unquestionable aerodynamic performance, but its purpose goes far beyond the wind tunnel or elite competition. The new-generation Propel is designed for your real world: to climb more easily thanks to its lighter weight, to fly on the flats with outstanding efficiency, and to tackle technical descents with confidence-inspiring precision.
The flagship model of the Propel lineup is designed to achieve maximum system speed, with uncompromising aerodynamic performance, superior power transfer, and a smoother ride quality. The Advanced SL aerodynamic frame, now 45 g lighter, retains its AeroSystem Shaping to minimize drag from every angle. From the Contact SLR Aero Cockpit to the integrated seatpost and the Cadex Max 50 wheelset with Cadex Aero tires, every component has been developed and tested to reduce wind resistance and rolling resistance. The results speak for themselves: an improvement of 18.44 watts, a 14.8% increase in system pedaling efficiency, and greater shock absorption at both the front and rear of the bike—helping you sprint faster, climb more efficiently, and maintain higher speeds.
The Total Speed System development process goes beyond isolated metrics to achieve the ultimate synergy between total drag, system efficiency, and system control. Through AeroSystem Shaping, we treat the rider, the frame, the Cockpit, and the wheels as a single dynamic unit that cuts through the wind while simultaneously reducing rolling resistance. By raising the bar for stiffness—from the frame to the entire Cockpit and the WheelSystem—every watt becomes an unstoppable force, while improved shock absorption and handling provide the smooth confidence to keep pushing in any conditions. This is the evolution of speed, allowing you to ride faster, climb higher, and go farther.
AEROSYSTEM SHAPING
This aerodynamic design process treats the entire bike and the rider as a single dynamic system. Using computational fluid dynamics (CFD), wind tunnel testing, and yaw angle analysis, engineers study how air flows around a moving bike and rider under real-world conditions. With the goal of reducing the system’s overall drag, the new Propel represents our most advanced expression of this process.
AERODYNAMIC FRONT END
Designed to **cut through the wind** in the bike’s critical front end, our **OverDrive Aero** technology features a sleek, tapered head tube that seamlessly integrates with a D-shaped fork steerer tube and its spacers. Brake and shift cables are routed internally to the integrated, one-piece handlebar and stem assembly, and continue through the frame and fork, remaining **hidden from the wind**.
FULL THROTTLE
The WheelSystems and tires across the entire Propel lineup are optimized as part of a comprehensive system that converts aerodynamic efficiency into real-world speed. The 50 mm hookless carbon rims minimize drag across a wide range of yaw angles, helping you maintain momentum without compromising stability in variable wind conditions. Cadex Aero and Giant Course tires optimize the interface with the rim to smooth airflow and reduce rolling resistance, while delivering superior grip and control.
OPTIMIZED COCKPIT
The new Propel incorporates one of its most notable innovations: an integrated one-piece handlebar and stem design. The Contact SLR Aero Integrated and Contact SL Aero Integrated models feature a flat rear and narrow top section to help cut through the wind more efficiently. In addition, the handlebar features a redesigned geometry, with reduced width at both the top and the bends, allowing the rider to adopt a narrower shoulder position and a smaller frontal area—key to improving aerodynamics and maintaining higher speeds with less effort.
EXPLOSIVE ACCELERATION
Tests show that the new Propel Advanced SL frame offers 3.4% more torsional stiffness compared to the previous generation and 2.4% more stiffness under pedaling. The combination of lower weight and greater stiffness results in a 5.7% improvement in the stiffness-to-weight ratio, meaning an instantaneous response every time you apply power to the pedals.
THE LIGHTEST Propel EVER
To make this Propel lighter than ever, our engineering team analyzed every element and identified opportunities to shave off grams wherever possible. The frame of the flagship Propel Advanced SL series is 45 g lighter than the previous generation. Add to that the new one-piece integrated handlebar/stem unit, the aerodynamic WheelSystems, the tires, and weight savings in components—including the bottle cages
STAY COOL, STAY Rapido
The redesigned seat tube, chainstays, and seatpost work together to improve vertical compliance by up to 25% compared to the previous generation of the Propel. This increased absorption capacity significantly reduces the impacts and vibrations reaching the rear of the bike, offering a smoother, more efficient, and less tiring ride, allowing you to stay fresh even on long days in the saddle.
ABSORBS VIBRATIONS
The head tube, stem, and handlebars are designed as a unified system to fine-tune the balance between aerodynamics, stiffness, and shock absorption. The integrated Contact SLR Aero and Contact SL Aero units play a key role in achieving a smoother ride, providing 12.8% more compliance at the front to reduce vibrations and minimize road buzz.
WIDER TIRES, LESS RESISTANCE
The increased tire clearance up to 32 mm allows for higher-volume tires and lower tire pressures. This translates to lower rolling resistance and a smoother ride over uneven surfaces. The new Cadex Aero and Giant Course tires also offer better grip and stability, helping you maintain speed through corners and over rough pavement even in variable conditions.
