This is the top of the line wind cheater from Campy. The rim weight is a hefty 590 grams. The width if the rim is a thin 19mm and the aero depth is 34mm. This rim is targeted for the time trial or lone rider that is willing to run a skinny sub 23mm tire. You can run any tire you like, but a 20 or 19mm tire will not leave the rim peaking out to plow throught the wind like a wider rim. If you are riding as a single for timed events this may be your rim. The draw backs are the cross wind characteristics are not very good and the ride can be harsh with narrow tires. The benefits are lower wind drag. The rims comes in a single color which is a high polished aluminum with HPW side walls.
http://www.campyonly.com/techtalk/techtalk12.htm
今天找到的資料...590克，聽起來沒多重，文章卻用 "hefty" (粗重、夠份量)來形容它。比較起來，我之前重編的那個 Sun Ringle 後輪，框的部份是410克(官方網站資料)。590 - 410 = 180。
一百八十克重多少？比一顆十公分長的 Cinelli Groove 龍頭還少，輕飄飄的，有差嗎...然後我想到了輪組的慣性主要在於輪框，因為這部份的質量有最大的半徑。算算看：180 / 410 = 0.439。加上幾何形狀會影響積分的計算，保守估計一下，這個 Atlanta 96 的後輪，其轉動慣量起碼是 Ringle 的 135%
媽媽咪呀！爬個五指山，光在一顆輪子上面的力氣就要多花三十五趴！難怪會累了
而且 Ringle 的框也不算輕量...記得當時重編有計算，鋼絲 + 花鼓 + 輪圈，算一算好像也是 8XX 或 9XX 這種數據。
這時候就出現一種麻煩：當和別人一起出去練車，你爬坡落後是必然的。但是可以容許自己落後多少？特別是依照之前的經驗，裝備一下子大躍進，總體表現仍不會提昇太多(特別是中距離、偏高強度的騎法)。和一般的想像差異很大。
如果讓車子成為可以比別人慢的藉口，那就糟糕囉...
(17:58) 雪特...茂林盃計時賽被取消了...
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