[KongchangAI]
Unverified85% confidenceTradeoffTime unknown

轮毂电机方案(如Mahle X20/ebikemotion)系统重量约3.5kg,适合追求隐蔽外观和轻量的公路车;中置电机方案(如Bosch/Shimano EP系列)扭矩大但整车重15kg以上,更适合Gravel或山地

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85%
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Long-term
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