Read this excerpt from Chapter 1 of Wheels of Change by Sue Macy.At any rate, the new velocipede was propelled by pedals and cranks attached directly to the axel of the front wheel, which was slightly larger than the wheel behind it. Forward progress could be stopped or slowed by pedaling backward. However, with iron tires and only an ineffective steel spring under the seat to absorb bumps in the road, this velocipede was a challenge to ride. It quickly earned the nickname "boneshaker." In 1865,
Answer
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the awkward look of the enlarged front tire
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the challenges of stopping the velocipede
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the discomfort of riding the velocipede
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the obstacles to filing for a US patent
Explanation
The excerpt says the velocipede had iron tires and only an ineffective spring to cushion bumps, making it a challenge to ride. The nickname “boneshaker” refers to the uncomfortable, jarring ride, so the best choice is “the discomfort of riding the velocipede.”
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