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The term "diamond frame" refers to the most common design for a bicycle frame. This design is formed by two triangles made of tubing. The main triangle includes the top tube, seat tube, and down tube. The rear triangle consists of the seat tube, chain stays, and seat stays. This structure provides a strong and efficient design for bicycles, though other frame designs exist, such as the step-through frame or those used in full-suspension mountain bikes. The materials used for these frames range from steel and aluminum to more advanced options like titanium and carbon-fiber composites.

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  1. bicycle - Frame
  2. space frame

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