騎個車感覺好累, 輪組太爛會被笑, 基礎物理沒學好也會被笑. 只好趕快古狗一下, 多學些東西. 2008輪組評比-空氣動力特性 2008輪組評比-慣性 維基百科 where ... factors which are generally considered[by whom?] the most important: aerodynamics weight rotational inertia hub/bearing smoothness stiffness ... 趕快mark起來, 慢慢讀, 不然會被酸太low.
rouesartisanales 的那篇文章常被拿來引用,inertia test(慣性測試)的目的是為了測試輪組的加速性能,轉動慣量(rotational inertia)越低越好,原文開宗明義就是這麼寫的:"When switching from cheap heavy wheelset to a high-end light one, both the rotational and translational energy required are reduced, meaning easier and better handling and acceleration. " "從廉價而沉重的輪組換成高階的輕量輪組時,(加速時)所需的轉動及平移能量皆減少,這意味操控性較好、加速更為容易"
輪圈、內外胎和鋼絲越重,代表轉動慣量越大,加速時所需的功也越大,例如以上測試報告中假設一個70kg的車手加5kg的車,在10秒內從時速0加速到30km/h,轉動慣量最低的Lew Pro VT-1要耗費265W(忽略其他阻力),而表中轉動慣量最高的輪組要多花9.1W...