Unverified85% confidenceDecision RuleTime unknown
大型犬(>25kg)应选铝合金框架而非PVC管,PVC在长期承重下易变形断裂;铝合金整车重量增加不到500g但承重可翻倍
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85%
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Long-term
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Unverified小型犬(<10kg)选铝合金车架整重宜<1.5kg,中大型犬需铝合金加固管径≥19mm,塑料/PVC车架仅适合5kg以下,超重会断裂87% similarUnverified铝合金框架比PVC/塑料款承重高但重量大,20kg以上犬必须选铝合金(承重通常≥40kg),5kg以下小型犬可选轻质塑料款减少负担86% similarUnverified车架轻便与承重稳定性相矛盾:碳纤维/薄铝管最轻但大型犬发力时易变形晃动,20kg以上犬应选加粗钢/厚壁铝架,牺牲重量换刚性84% similarUnverified10kg以下小型犬选铝合金或PVC轻管架(总重<1.5kg),15kg以上大型犬必须选带轴承的加粗铝合金架并配大直径充气轮或EVA实心轮(轮径≥10cm),塑料轮在10kg以上负重下易变形卡顿82% similarUnverified铝合金车架比钢架轻约40%,10kg以下小型犬优先选铝合金减少负重疲劳;20kg以上中大型犬需兼顾承重强度,钢架或加粗铝合金更耐用79% similar
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