ddar白馬 wrote:
上管+龍頭。同樣長度...(恕刪)
我覺得不能光上管+龍頭，還要加車座offset下去考量。這樣同樣長度變因又更多了。
ddar白馬 wrote:
上管+龍頭。
同樣長度下會有很多種組合。
f兄說的，二者不能補償，
我的看法是......
騎乘特性會不一樣，要看個人選擇。
這是車合人身，或人合車身的問題。
硬說有沒有正確，我覺得沒有定論，如果是職業車手，是沒有選擇車架的空間。
贊助商來了幾度就幾度，你只能挑長度。
除非你夠大咖，可以要車廠做你想要的車架，否則，好騎是你賺到，難騎也是剛好而已。
休閒運動車手沒有壓力，所以可以騎自己喜歡的車，大一點或是小一點，也是個很有趣的選擇。
例如說：
大腿長決定 SeatBack，而 (上管長 + 角度) 差不多就決定了這隻車架合不合你身。
但是這個數值不是死的，還是有空間，因為大盤是圓的！
硬要說，SeatBack只決定了骨盆的角度而已，你退的越後，骨盆就往前倒的越多，但是，透過坐墊高低差，這角度又可以修正了～
人在車上，往前1cm或往後1cm都可以騎，只是騎法略有不同。
重點來了：
一隻車架，加上一個車手的特性，再加上車身設定的改變，可以有多少變化？
所以，給我一隻車架，我起碼會花上好幾個月，嘗試各種不同的設定，多方嘗試它的極限，加上各種不同的輪組。
這裡面有著無窮的樂趣，也是單車玩不完的原因。
www.cycliving.com
發哥3727 wrote:
想請問UCI對CYC...(恕刪)
發哥所提的規則~個人猜測是禁止超人騎法的特定條款
如果印像沒記錯~應該就是1998-1999年UCI與Graeme Obree鬥法下的結果
http://www.xindiancyclist.tw/
Lanxlot5475 wrote:
這是車合人身，或人合...(恕刪)
拜讀版主的大作，實在佩服，對任何一項東西能精研到一定的程度，都是值得讚許的。
老人家我也是單車新手，多年不騎車了，現在重新從小摺出發，無奈人老了，心也容易大，所以最近也一直在關注公路車資訊。
我想請教版主的問題也像樓上這位前輩所提到的，只是換成一個新手的角度，在還沒有養成騎乘習慣之前，如果要買一部車的話，是否應該就先以科學數據為依據，先購買適合身材的標準尺寸車架，然後學著適應這樣的車架呢？
另外想請教，因為我長期在北京工作，基本上一年難得回台灣幾次，如果我將我在北京做fitting的數據傳回台灣配車，有什麼該注意的事項嗎？
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蘋果拉到北京還是蘋果啦！
發哥3727 wrote:
我比較好奇的是為什麼...(恕刪)
根據電影情結，UCI主觀認定Graeme Obree的姿勢不穩定且危險
發哥所題文字應該是這段：
The rider’s position for time trial on the road and for the pursuit on the track is defined by two measurements of the bicycle: the position of the tip of the saddle behind the bottom bracket (- 5 cm minimum) and the advanced position using the extension (+ 75 cm maximum). These measurements are verified by commissaires using a checking device. The checks are conducted in the time trial start area. Once a bicycle has been checked, it cannot be removed from the start enclosure. If it is removed, a second check will be required.
The saddle position is measured from the tip of the saddle to the vertical plane passing through the centre of the bottom bracket axle. The advanced position is measured along the handlebar extension (overall length) from the vertical plane passing through the centre of the bottom bracket axle. If the handlebar extension is fitted with gear levers, the distance is taken from the axis point of the gear lever. The gear lever beyond the axis point is allowed to extend beyond 75 cm provided that it does not offer an alternative use (e.g. a lever modified such that the hand contact point is beyond 75 cm). In the case of an electrical gear change system operated by a push button, the distance is measured to the end of the extension (overall length).
Any rider who considers, for morphological reasons, that he/she cannot respect the regulations concerning the position of the saddle behind the bottom bracket or the handlebar extension may request a dispensation from the commissaire when presenting his/her licence. The request for an exemption from the regulations can only apply to one element, either the saddle position or the advanced handlebar position.
Experience has shown, and has been confirmed by models of positions, that requests for exemption for the saddle position (less than - 5 cm) are usually presented by riders of a small build whereas requests for exemption of the advanced position (in excess of +75 cm) are usually presented by riders of a large stature,although there is no absolute rule. The technical commissaire considers the nature of the exemption requested by the rider. The commissaire notes the details in an «exemption report» that accompanies the final race report. The commissaire can check the validity of the request in accordance with the methods defined in the Technical Regulations.
http://www.xindiancyclist.tw/
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