What structural elements defined the frame of Lewis Evans’ 1888 Cushion Wheel bicycle?
Answer
Strips of metal connected by bolts and springs
The construction of Lewis Evans' 1888 Cushion Wheel bicycle employed a foundational engineering approach distinct from later technologies. Instead of using the traditional welded tubes characteristic of standard bicycle frames, Evans constructed the frame using strips of metal. These strips were explicitly connected using bolts and, most critically, springs. This arrangement provided the necessary mechanical suspension by allowing vertical compliance, directly addressing the harshness transmitted through the solid tires of the velocipedes popular at that time, thereby achieving basic shock absorption.
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