Aero dominance with pro‑level precision
The 2025 Giant Propel Advanced SL 0 in
Gloss Black Lava is engineered for riders who demand the absolute pinnacle of aerodynamic performance. As Giant’s flagship aero race machine, it blends the lightest Propel frame ever produced with the flawless shifting of Shimano Dura‑Ace Di2 and the uncompromising speed of the CADEX Aero WheelSystem. The result is a bike built to win sprints, breakaways, and high‑speed race days.
Advanced SL‑grade carbon: the ultimate aero platform
At the heart of the SL 0 is Giant’s Advanced SL‑grade composite frame, constructed using continuous‑fibre layup and one‑piece moulding. This delivers exceptional stiffness‑to‑weight performance and razor‑sharp handling. The integrated seatmast reduces weight and improves aerodynamic flow, giving the bike its unmistakable pro‑tour silhouette. Every contour is sculpted for speed, ensuring maximum efficiency under power.
AeroSystem Shaping for real‑world speed
Using Giant’s AeroSystem Shaping Technology, the frame employs truncated‑ellipse tube profiles optimised for performance across varying wind angles. Whether you’re launching a sprint, attacking solo, or holding a high‑speed tempo, the Propel Advanced SL 0 maintains aerodynamic efficiency and stability in turbulent, real‑world conditions.
Shimano Dura‑Ace Di2: the gold standard in electronic shifting
This edition of the SL 0 is equipped with the latest Shimano Dura‑Ace Di2 groupset — the benchmark for professional‑level performance. With lightning‑fast electronic shifting, refined ergonomics, and unmatched drivetrain efficiency, Dura‑Ace delivers crisp, flawless gear changes under any load. Paired with Shimano’s powerful hydraulic disc brakes, the SL 0 offers confident, predictable stopping in all conditions.
Integrated cockpit for seamless aero efficiency
The Contact SLR Aero integrated cockpit keeps the front end clean, stiff, and aerodynamic. Fully internal cable routing enhances airflow and aesthetics, while the refined ergonomics support both aggressive race positions and long‑distance comfort.
CADEX Aero WheelSystem: engineered for pure speed
The SL 0 rolls on the CADEX Aero WheelSystem, designed to maximise aerodynamic efficiency, lateral stiffness, and rapid acceleration. Paired with tubeless tyres, the wheels deliver reduced rolling resistance, improved puncture protection, and exceptional cornering grip — essential for high‑speed racing and technical descents.
Gloss Black Lava: a colourway that radiates intensity
The Gloss Black Lava finish gives the SL 0 a bold, molten‑metal aesthetic. Deep black tones blend with fiery highlights that shimmer under light, emphasising the sculpted aero lines of the frame. It’s a colourway that looks explosive even when standing still.
Feature Highlights
- Advanced SL‑grade composite frame and fork
- Integrated seatmast for maximum stiffness and aero efficiency
- AeroSystem Shaping Technology
- Shimano Dura‑Ace Di2 electronic drivetrain
- Shimano hydraulic disc brakes
- Contact SLR Aero integrated cockpit
- CADEX Aero WheelSystem (tubeless ready)
- Tyre clearance: up to 32mm