在不久前举行的环阿联酋计时赛中，英力士-掷弹兵车队的车手托比亚斯福斯的计时赛自行车上安装的68齿超大牙盘引起了广泛关注。这并非意味着这位挪威车手拥有驱动如此大牙盘的超常能力，而是基于边际效益的理性选择。 大尺寸牙盘的机械原理 对于大多数 ...

British team take first WorldTour victory since June as Welshman vows to try and defend jersey up Jebel Jais - 'I'm not going to let it go easy' However, the British time trial champion showed no ...