Open Box - Cannondale C1 Aero 27 Seatpost 15mm Offset

This is an open-box item. It may show minor signs of handling from being previously opened or displayed, but it has not been installed or ridden. All original hardware is included, and the product remains in fully functional, ready-to-install condition.

The Cannondale C1 Aero 27 Seatpost brings a 27mm deep, D-shaped aerodynamic profile to compatible Cannondale road frames. Built from full carbon construction, it pairs a slim aero shape with the stiffness needed for confident power transfer, making it a fitting match for riders upgrading their SuperX, Synapse, CAAD13 or SuperSix Evo.

This 330mm post includes a 15mm setback offset for riders who prefer a touch more room behind the bottom bracket, and it is built from Hi Mod carbon for a refined ride feel. SmartSense compatible hardware is included, so riders running Cannondale's integrated lighting and sensor system can install it without sourcing separate parts.

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