剪成尺寸的複合板. {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/5\/53\/Make-a-Bicycle-Saddle-Bag-Step-19Bullet1.jpg\/v4-459px-Make-a-Bicycle-Saddle-Bag-Step-19Bullet1.jpg","bigUrl":"\/images\/thumb/5\/53\/Make-a-Bicycle-Saddle-Bag-Step-19Bullet1.jpg\/aid4393664-v428-7px-Make-a-Bicycle-Saddle-Bag-Step-19Bullet1.jpg","small"Width:40,"small"Height:306",big"Width",""287","Height"","85",Face"85",Face"85",Face"Face"Light"Light"Light"Light"Light"LightLightLightLightL 標記您將在袋子上放孔的區域,其中U-螺栓將通過. {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/2\/2a\/Make-a-Bicycle-Saddle-Bag-Step-22Bullet1.jpg\/v4-459px-Make-a-Bicycle-Saddle-Bag-Step-22Bullet1.jpg","bigUrl":"\/images/\thumb/2\/2a\/Make-a-Bicycle-Saddle-Bag-Step-22Bullet1.jpg\/aid43964v4-728px-Make-a-Bicycle-Saddle-Bag-Step-22Bullet1.jpg","smallthumb""6",smallthumb""6",smallthumb""7",smallthumb""28",smallthumb""7",smallthumb""8",smallthumb"<br>">"<<p>使用"<p><p>  摘要:
購買兩個相同的袋子. 測量兩個袋子的長度和寬度. 把這些測量轉移到一個<unk>合板. 插入<unk>合板到袋子裡. 裝上一個自行車後置架 (這是你將安裝<unk>袋的地方) 把袋子放在自行車後置架的一側. 在你的標記上打孔. 拿起你的鑽頭, 穿過袋子裡面的<unk>合板, 把U-bolt放在自行車後架上. 用U螺栓和螺母安裝袋子並固定它們. 另一個袋子也做同樣的事情.