關於車架幾何的問題 - 單車
By Cara
at 2016-10-03T21:54
at 2016-10-03T21:54
Table of Contents
小弟最近在看Endurance Bike,當然車架幾何是很重要的參考值,
不過在比較了幾個大廠車款之後,就一直有個疑問,
照理說,在頭管角度相同的情控下,不是應該頭管越長,Stack越長嗎?
以Specialized的車款來說,我注意的是他的Endurance Bike的Roubaix車系
跟Gravel Bike的Diverge車系
Roubaix的幾何是
https://www.specialized.com/us/en/bikes/road/roubaix-sl4-disc/106620
Diverge的幾何是
https://www.specialized.com/us/en/bikes/road/diverge-comp/119013
以這兩台車同樣尺寸54來說,兩者上管長一樣是547mm,頭管角度一樣是72°
然後Roubaix的頭管長是165mm,Diverge的頭管長是140mm,差了25mm,
可是他們的Stack卻是幾乎一樣的,Roubaix的Stack是564mm,而頭管140mm
的Diverge,Stack反而是比Roubaix還長1mm的565mm?
請問是哪裡有我沒注意到的嗎?
為何Diverge較短的頭管卻能跟有長頭管的Roubaix有一樣的Stack?
另外一問,
Roubaix跟Diverge有一樣的Stack跟Reach,是不是代表在騎乘時的舒適度是差不多的?
(這邊暫時扣除車架吸震能力的舒適度表現,純粹以幾何舒適度來討論)
目前就這兩個問題,謝謝
--
不過在比較了幾個大廠車款之後,就一直有個疑問,
照理說,在頭管角度相同的情控下,不是應該頭管越長,Stack越長嗎?
以Specialized的車款來說,我注意的是他的Endurance Bike的Roubaix車系
跟Gravel Bike的Diverge車系
Roubaix的幾何是
https://www.specialized.com/us/en/bikes/road/roubaix-sl4-disc/106620
Diverge的幾何是
https://www.specialized.com/us/en/bikes/road/diverge-comp/119013
以這兩台車同樣尺寸54來說,兩者上管長一樣是547mm,頭管角度一樣是72°
然後Roubaix的頭管長是165mm,Diverge的頭管長是140mm,差了25mm,
可是他們的Stack卻是幾乎一樣的,Roubaix的Stack是564mm,而頭管140mm
的Diverge,Stack反而是比Roubaix還長1mm的565mm?
請問是哪裡有我沒注意到的嗎?
為何Diverge較短的頭管卻能跟有長頭管的Roubaix有一樣的Stack?
另外一問,
Roubaix跟Diverge有一樣的Stack跟Reach,是不是代表在騎乘時的舒適度是差不多的?
(這邊暫時扣除車架吸震能力的舒適度表現,純粹以幾何舒適度來討論)
目前就這兩個問題,謝謝
--
Tags:
單車
All Comments
By Dorothy
at 2016-10-07T16:42
at 2016-10-07T16:42
By Tracy
at 2016-10-10T07:52
at 2016-10-10T07:52
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at 2016-10-10T18:35
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at 2016-10-13T08:32
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at 2016-10-15T20:59
at 2016-10-15T20:59
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at 2016-10-18T06:19
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at 2016-10-21T20:41
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