Bicycle frame

（重定向自Down tube）

A steel hardtail mountain bike frame produced by Rocky Mountain Bicycles.

Steel frame of 2000 LeMond Zurich road racing bicycle mounted on a workstand.

A Triumph step-through, ladies', or open frame.

A bicycle frame is the main component of a bicycle, onto which wheels and other components are fitted. The modern and most common frame design for an upright bicycle is based on the safety bicycle, and consists of two triangles, a main triangle and a paired rear triangle. This is known as the diamond frame. Frames are required to be strong, stiff and light, which they do by combining different materials and shapes.

单词	Down tube
释义	Down tube 原声例句里奇大叔带你欧洲行 Does this not hurt the geese to put the tube down? 瑞克：放下管子不会伤到鹅吗？豪斯医生一 Dr. House is alleged to have forced a tube down Mr.Giles's throat against his will. 豪斯医生被指控违背贾尔斯先生意愿帮贾尔斯先生插喉管。扎克的医学生日常 So we went down to this endoscopy lab, this guy is like passed, he's like being put to sleep, right, so they can put a tube down his throat. 所以我们去了这个内窥镜检查实验室，这家伙就像过世了，他就像被睡着了，对，所以他们可以在他的喉咙里放一根管子。英语百科 Bicycle frame （重定向自Down tube） A bicycle frame is the main component of a bicycle, onto which wheels and other components are fitted. The modern and most common frame design for an upright bicycle is based on the safety bicycle, and consists of two triangles, a main triangle and a paired rear triangle. This is known as the diamond frame. Frames are required to be strong, stiff and light, which they do by combining different materials and shapes.
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