Size (mm) 280 x 135 Weight (gr) 197 Base Carbon Rail Carbon Cover Microfiber+CPC Padding Light Foam Nack rails Nano carbon fiber rail. Carbon fiber, Kevlar and aluminum filaments seat-post clamp area, treated with the production process called Braided Carbon Rail (BCR). This is done in order to obtain "the perfect fusion" and uniformity of the several type of fibers a nd materials. The result is a balance structure and resistant to penetration. What is the CPC technology? How does CPC work? Shock absorption Thanks to the stratigically placed polymer-shaped volcanos, the elasticity absorbs all shocks and vibrations resulting from the "Roads". The CPC polymer The CPC is a special 3D Polymer by the long chain molecular aggregation. It differs from all other polymers present on the market as it has the ability to absorb shock and vibration, and it willnot lose its main features over time, ensuring its effectiveness in any weather conditions for a long time. Vibration absorption The CPC with its Nano-structures, protects muscles, tendons and soft tissue stress, shock, vibration and oscillation that results from continuous pedaling, this reduces muscle fatigue, improving recovery time after riding. Grip and position The CPC ensures perfect grip and positioning. The "design of the material CPC (multiple empty cylinders), it creates a "vacum effect", ensuring a perfect posture and better aerodynamics. There are many advantages for the athlete: aerodynamics', increases power while improving performance and comfort. Air cooling The CPC allows a continuous flow of air, improving comfort and performance in all weather conditions. Massaging and manipulation Thanks to this special material, CPC system uses the kinetic power produced by the athlete to stimulate blood flow and eliminate tingling or numbness. It therefore benefits the nerves and tendons by helping to avoid tunnel carpal syndrome.