Looking for a non-round seatpost compatible with your Colnago C68, V4Rs, C64, or V3Rs? Here is the perfect solution. This ultralight seatpost allows you to replace the original component, saving significant weight in one of the most crucial areas of your bike. By reducing weight on the seatpost and saddle—parts located far from the ground—you effectively minimize the pendulum effect and improve overall ride dynamics.

The weight of this non-round seatpost is approximately 95 grams in a 350 mm straight version. The post is crafted from high-quality carbon fiber using both bidirectional and unidirectional fabrics with a carefully engineered asymmetrical laminate. This design delivers the optimal balance between minimum weight and maximum resistance.

Each seatpost is hand-laminated to achieve record low weight while ensuring durability and rider safety. Every section of the seatpost features a tailored number and orientation of carbon fiber layers, determined through finite element analysis and destructive testing. This scientific approach guarantees exceptional performance and reliability.

The newly designed clamping system for the straight versions uses two ultralight Dyneema® loops. This innovative solution significantly reduces weight at the head of the seatpost while remaining compatible with all types of saddle rails, including 7x9 mm carbon rails.

Choosing the correct seatpost length: Measure your current seatpost from the seat clamp (top of the vertical tube) to the saddle rail center. Select the corresponding size from the available chart. If two sizes are possible, consider rider variation and bike usage. Custom lengths up to 500 mm (or even longer) are available upon request—contact us for a tailored solution.