Unverified86% confidenceDecision RuleTime unknown
轴承结构看密封性：DU衬套+密封轴承（如1 bushing + 1-2 sealed bearing）比纯滚珠散珠结构防泥防水更好，山地/雨天骑行必选密封轴承
1
Sources
86%
Confidence
Long-term
Relevance
-
First Seen
Sources
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