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内容来自iPhone手机客户端
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内容来自Android手机客户端
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jamo01:自行车轮胎截面接地形状是圆弧,和汽车轮胎的扁平完全不同,所以自行车轮胎接地面积和宽度没有关系,只和胎压有关,所以铺装路面要加强防滑刹车性能,换宽胎齿胎P用没有 (2020-09-29 13:17)
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