What percentage of bike crashes result in some kind of head injury?

• A. 50%
• B. 25%
• C. 90%
• D. 75%

Answer: (D)

Head injuries are a common outcome in bicycle crashes because the rider’s head is fully exposed during a fall or collision, so even a brief impact can affect it. About three-quarters of bike crashes involve some head injury, ranging from minor cuts to concussions or more serious trauma. This high likelihood is why wearing a properly fitted helmet is such an important safety habit—it significantly lowers both the chance and the severity of head injuries. The other percentages don’t fit typical crash data: 50% or 25% would understate the risk, while 90% would overstate it. The key takeaway is that protecting the head with a good helmet makes a big difference in safety on every ride.