理論上設計愈好是愈省力，輪徑愈小慣性愈差(速度維持不易)，所以這樣推算出來，
30公里的路程公路車應該會比小徑來的省力、輕鬆，所以小徑這30公里的路程相對
費力，持續要出力(沒慣性)，這樣來說騎30公里運動效果較顯著的應該是小徑吧
，扣除掉其它不安(下坡危險、結構強度)，公路車是設計來以最少力量維持最高
速度的，所以公路車反而運動效果是差的(相同的單位里程)
aikon029 wrote:
這完全是不合常理
除非，一費力就不用力踩
否則，越費力，心率越高
不是常有人說，高階的公路車會讓人愈踩愈快，不小心就被吸乾了嗎？
也就是說，效率好的車，比較容易做出最高功率，所以一下子就進入紅線區，爆掉了
曾經有國外的專業單車雜誌在同路段、同選手，測試鋼管和現代碳纖公路車，得出類似的結論
不然下次您可以試試騎淑女通勤車，看看有沒有辦法騎到爆心跳
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附上原文節錄
In this test, with the same riders switching bikes, the same one bike was consistently faster. Power Tap meters were used to measure each rider’s output. On the faster bike one rider put out 5% more power than he did on the slower bike, and the other 2% more.
The author of the above linked article points out that it is difficult to reach maximum heart rate on a bike, unlike running which of course is much harder. He surmises that if the muscles can’t use all the oxygen that the heart is pumping to them, why should the heart beat any faster?
If one bike or bike frame leads to the rider becoming fatigued at a faster rate, the power output for that bike or frame will be less.
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