Crossbar for bicycle, has internal layers made of synthetic material e.g. glass fiber or carbon fiber, where coaxial tube layers are connected by synthetic resin, and metal network provided with diagonally interweaved steel wires

摘要

The crossbar (1) has coaxial tube layers provided with a metal network, and internal layers (11) made of synthetic material e.g. glass fiber or carbon fiber, where each coaxial tube layer is connected by a synthetic resin. The metal network is provided with diagonally interweaved steel wires. Two inner tubing layers are provided with the glass fiber, and an outside lying layer is provided with the carbon fiber.