[KongchangAI]
Unverified85% confidenceDecision RuleTime unknown

头盔重量控制在300g以内长途骑行才不易颈部疲劳;加装扬声器、电池、灯组后的智能头盔多在350-450g,长距离骑行(>2小时)应优先重量而非功能堆砌

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85%
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Long-term
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