Unverified75% confidenceFactTime unknown
PVC速度绳绳径一般2.5-4mm，绳径越细速度越快但越易缠绕，儿童入门选4-5mm粗绳更好控
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Unverified钢丝轴承款绳体通常为钢丝外包PVC，直径约2.5-4mm，转速快但不适合初学；棉绳直径通常5-8mm更粗更慢，起到缓冲绊绳作用82% similarUnverified钢丝绳越细越快但越易缠绕/抽伤且易磨损断裂，粗绳/珠节绳更耐用抗缠绕但速度慢，初学者选2.5-4mm直径为宜80% similarUnverified串珠孔径应比绳头硬化段直径大1-2mm，孔径过小（＜4mm）会导致3-4岁儿童反复穿不进而放弃，孔径5-8mm配硬质包胶绳头最易上手77% similarUnverified线缆长度5米适合车位规整场景，充电口在车尾但插座在墙侧时建议7-10米；线缆越长内阻越大，长线机型截面积应≥2.5mm²以避免压降和发热74% similarUnverified钢丝越细速度越快但抽到身上越疼且更易缠绕，2.5mm-4mm是速度绳常见区间；健身减脂用户选3mm以上更耐用容错高74% similar
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