Shaft Material: CNT Carbon Composite
Head Material: CNT Carbon Composite
RAD (Relief Area Design) shaft
EMC upper and lower seat clamp
All carbon except for hardware
Replaceable Hardware
New 2-bolt head design provides more security and
infinite adjustment
Full-carbon Taperwall monocoque shaft and head-no
bonded joints
Offset: 0mm
Sizes: 27.2, 31.6mm x 300mm
Was this useful? Yes | No The EC90 zero-offset is a super-light and strong, all-carbon (except for the bolt) seat post. Eastons revolutionary EMC (Easton Matrix Composite) technology is used to form long-fiber composite material into the finely detailed seat post head. Now with Carbon Nanotube (CNT) technology.
The weakest areas in a traditional carbon-fiber component are the tiny spaces between the fibers that contain only resin. To radically improve strength and toughness in these critical areas, Easton Scientists have developed an innovative Enhanced Resin System using carbon nanotubes (CNT). Carbon nanotubes are an array of carbon atoms arranged in a pattern of hexagons and pentagons (similar to the pattern found on soccer balls). These structures can be manufactured in tubular shapes one billionth of a meter in diameter, hence the name nanotube. Carbon nanotubes have been called the strongest fiber that will ever be made. Nanotubes have a strength-to-weight ratio orders of magnitude greater than steel.
Fine detail and wide variations in the thickness of cross-sectional areas are not possible with traditional methods of composite fabrication. Injection molding is a process that can create fine detail and wide variations in wall thickness, but injection molded components lack strength. The process used to create EMC components is superior to injection molding in that it allows the use of a new long-fiber carbon composite material. This new process, called compression molding, can be thought of as a 3-D forging of composites. Compression molding is unique in that it allows fine detail to be molded into a component that is made of 60% carbon fiber. The 60% fiber-to-resin ratio of EMC is nearly identical to the resin ratios of pre-preg materials used in the manufacturing of existing carbon-fiber components.
Through the years, Easton has developed and refined a process of cold-working aluminum that sets the standard in the industry. TaperWall technology infuses our tubing with the unique performance characteristics revered by cycling enthusiasts and world-class athletes alike. Our computer-modulated draw benches allow us to create multiple tapers in the same tube, so the tube walls can be reinforced anywhere along their length with incredible precision. The result is jeweler-smooth walls that eliminate the stress points typical of other manufacturers tubing. Strength, weight, fatigue life, and responsiveness are all enhanced.
Easton engineers ingeniously reshaped the steerer tube to prevent the clamping mechanism from gouging or scoring the steerer tube. This patented Relief-Area Design (RAD) ensures durability without added material or weight. RAD technology also enhances the durability of Eastons carbon seat posts which can also be compromised by seat post clamps.
Zyvex provides nanotechnology solutions for short-term and long-term real world applications. Zyvexs vision is to become the leading worldwide supplier of tools, products, and services that enable adaptable, affordable, and molecularly precise manufacturing. Zyvex currently offers nanotechnology products in the areas of materials, tools, and structures for a wide variety of markets, including Aerospace and Defense, Healthcare and Medical, and Electronics and Semiconductors.
Click here to see all products by Easton Product Specifications Offset: 0 mm
Weight: 160 grams (300 mm), 190 grams (400 mm)
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