[KongchangAI]
Unverified82% confidenceDecision RuleTime unknown

公路竞速头盔重量应≤250g(M码),长距离骑行超过280g会明显增加颈部疲劳;通勤/城市头盔可放宽至300-350g以换取更强抗冲击外壳

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82%
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Long-term
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