Original Cannondale C1 Aero 27 Seatpost. Length is 330mm. Constructed from high-modulus carbon fiber for lightweight stiffness and enhanced power transfer. Its D-shaped aerodynamic profile with a 0° offset (also available in 15mm offset as K2600415) is designed to optimize rider positioning and reduce aerodynamic drag, making it suitable for road and gravel disciplines. The full carbon construction promotes vertical compliance to improve comfort on varied surfaces including rough pavement and gravel roads. Compatibility includes select models such as the 2025 SuperX, Synapse, 2020 CAAD13, and Supersix Evo series. The seatpost supports a neutral saddle position tailored for performance-oriented road and gravel riders prioritizing speed and comfort. SmartSense-ready hardware integration is included for sensor compatibility.

• Material: High-Modulus Carbon
• Offset: 0°
• Length: 330mm
• Seatpost Diameter: 27.2mm

Today's Stock Status

1 Ready to ship or pickup from Utah