Biaxial Voca carbon reeds for the original reed valve. Biaxial carbon of the highest quality, 0.35mm thick, is used for Yamaha RD 350 type reed valves. Also valid for MRP reed valves and Pinasco direct admission cylinders for Vespa. 0.35mm is the recommended thickness for preparations with an original reed valve. This Biaxial material guarantees a very high level of resistance and a fast opening / closing of the reeds. A good carbon maintains the durability and lightness of the steel sheets. Increase the resistance of fiberglass sheets. And thanks to the stiffness offered by carbon it has unbeatable stability at high revolutions, which avoids the vibrations of the sheet, favoring that it can reach higher rpm. At the same time, the carbon sheets offer a stable behavior at low revolutions. At the moment of maximum wear, the fibers of the tips are broken, which can be expelled by the engine without further problems. When this occurs with metal sheets, metal chips can seriously damage the engine. 100% VOCA high-quality carbon reeds.