下面是我在正新網頁查到的有關公路車胎700x45c的解釋,
700 輪胎外徑單位公釐(mm)
45 斷面寬度單位公釐(mm)
C 適用輪圈種類
我覺得 c 的解釋怪怪的,也找不到什麼依據來証明它的對錯,
有請各方高手提供正解,並附來源和理論依據,找出真正的解答!!
navalray wrote:
我覺得 c 的解釋怪怪的,也找不到什麼依據來証明它的對錯,...(恕刪)
我之前看過的是這樣寫:
In the French system, the first number is the nominal diameter in mm, followed by a letter code for the width: "A" is narrow, "D" is wide. The letter codes no longer correspond to the tire width, since narrow tires are often made for rim sizes that originally took wide tires; for example, 700 C was originally a wide size, but now is available in very narrow widths, with actual diameters as small as 660 mm.
這樣看起來這個C說是輪圈種類有點似似而非
不過我也忘了這段文自從哪裡剪來的...抱歉
未來有個人會需要你
650C ISO是571mm =>輪徑(23C)=571+23*2=617
26"x1" ISO也是571mm
登山車 26"x1.25...2.35 ISO=559mm
ABC只是規範不同,也就是ISO也會不一樣.
如650B是584mm
一般27"胎徑比700x25C大, 28"可以算是700c(有些是29")
這就像氣嘴一樣,只是規範不一樣.
所以您的700x45C=>輪徑=622+45*2=712
E.T.R.T.O.
ʎǝuɹnoſ ʎɯ ǝǝS 等待與告別: https://youtu.be/k1lf_n0Vs-I