|
Time trials have been part of cycling for more than a hundred years. The first time trial was run in 1895 after a ban on road racing was imposed by the National Cyclists' Union. It wasn't until 1939 that the time trial made its world stage debut as an official stage of the Tour de France.〔Thompson, P.44〕 It was originally used as a method of drawing more people to listen to the Grand Tour on the newly available radio broadcast of the 1939 race.〔Thompson, P.44〕 The main thing that distinguished the first time-trial from the traditional form of road racing was that the riders started at intervals instead of one large group and they raced against the clock instead of each other.〔Sidwells, p.52〕 Unlike road racing where the a rider can hang in the peloton and draft off of other riders to conserve energy, time trial races put the rider out alone on the course. There are no breaks and no one to draft off, causing a rider to push as hard as they can the entire race〔Sloane, p.349〕 and as fighter planes evolved from the propeller driven fighters of World War I to the modern jet, bicycles have also evolved to accommodate this new form of racing, with most of the breakthroughs occurring in the last 40–50 years with the introduction of triathlons. == Components of the Bike == There are several different aspects of a time trial bike that give the bike its wind cheating ability. * Frame * Component group * Cranks * Wheels * Aerobars * Hydration systems * Helmets * Time-trial clothing 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Time trial cycling equipment」の詳細全文を読む スポンサード リンク
|