The D-shaped design of the C1 aero 27 seatpost enhances aerodynamics and boosts vertical compliance, reducing muscle fatigue so you stay fresh and fast for the final sprint.
Where it thrives
The open road, up & down hills, rough pavement, gravel
What it's built for
Speed, comfort, lightweight
Material
Unidirectional Carbon
Post Diameter
Knot 27 Aero
Post Length
330mm
Colour
Raw
Hardware
Steel
Offset
0mm
FEATURES
27mm deep, D-shaped aerodynamic profile fits 2025 Superx, 2025 Synapse, 2020 CAAD 13, 2020 Supersix Evo, Evo SE and Evo CX