公路車 長腿 vs 短腿? - 公路車
By Caitlin
at 2008-02-14T11:37
at 2008-02-14T11:37
Table of Contents
※ 引述《germany94 (Bob)》之銘言:
: 最近在看公路車
: 心中有個疑問想上來請教
: 一般公路車大盤都是兩盤的
: 後變使用短腿的
: 而登山車都是三盤的大盤
: 後變為長腿
: 而有一些公路車也配有三盤的大盤
: 那請問這種車也就需要配長腿的後變嗎?
: 有必然的關係嗎?
: 還有公路車用CT盤爬坡會不會還是很累阿
: 先謝謝大家的回答了
簡單來說,你可以把後變兩枚導輪之間轉折的鏈節視為 buffer,這段鏈條
的長度就是所謂的 capacity,用來補正大盤和飛輪的齒數變異量。三片大盤
的變異量大,自然需要相應的的緩衝量,也就是配用長腿後變速器。
--
- Mjolnyr -
Hamarr, helga ve veita ok hindra alla illska.
--
: 最近在看公路車
: 心中有個疑問想上來請教
: 一般公路車大盤都是兩盤的
: 後變使用短腿的
: 而登山車都是三盤的大盤
: 後變為長腿
: 而有一些公路車也配有三盤的大盤
: 那請問這種車也就需要配長腿的後變嗎?
: 有必然的關係嗎?
: 還有公路車用CT盤爬坡會不會還是很累阿
: 先謝謝大家的回答了
簡單來說,你可以把後變兩枚導輪之間轉折的鏈節視為 buffer,這段鏈條
的長度就是所謂的 capacity,用來補正大盤和飛輪的齒數變異量。三片大盤
的變異量大,自然需要相應的的緩衝量,也就是配用長腿後變速器。
--
- Mjolnyr -
Hamarr, helga ve veita ok hindra alla illska.
--
All Comments
By Damian
at 2008-02-14T23:10
at 2008-02-14T23:10
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