| 摘要 |
Steel or light alloy frame for bicycles or motorcycles. It has: forward incl ination of the front forks of an angle (3), variable dia meter of the front wheel, distribution of weight according to angles (5, 6, 7), a new way of considering the hubs (1, 2), as application p oints of the dynamic moments obtained by the weight force for the distances (8, 9 and 10). Variability of the measures and angles which make up the frame. Higher speed, lower costs, healthier work, less polluting discard ed material.
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