Time trialist

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Fabian Cancellara riding a time-trial Cervelo bicycle with aerodynamic wheels and aero bars. Tds Fabian Cancellara.jpg
Fabian Cancellara riding a time-trial Cervelo bicycle with aerodynamic wheels and aero bars.

A time trialist is a road bicycle racer who can maintain high speeds for long periods of time, to maximize performance during individual or team time trials. The term cronoman, or chronoman, is also used to refer to a time trialist.



In a traditional individual time trial, riders set off alone (not in a group or peloton) at intervals, typically anything from one to five minutes, and try to complete the course in as short a time as possible. In order to maximize the overall speed a time trialist must be able to maintain a steady effort throughout the event, of which the best measure is believed to be the rider's power at lactate threshold (LT) or aerobic threshold (AT). The best time trialists (such as Miguel Indurain, David Millar, Ellen van Dijk, Tony Martin, Tom Dumoulin and Fabian Cancellara), are believed to have very high power output at LT/AT, which they can then maintain for the duration of the time trials.

Chris Froome wearing the yellow jersey during a time trial at the 2016 Tour de France Tour de France 2016, froome (27979590983).jpg
Chris Froome wearing the yellow jersey during a time trial at the 2016 Tour de France

To be a successful time trialist, a cyclist must have exceptional aerodynamic posture and be able to take in plenty of oxygen. [1] Aerodynamic performance can also be improved by riders using 'skin suits', overshoes and streamlined helmets.

Bike technology is also important in time trials. By using aerodynamic components, a bicycle can be designed to minimize its drag coefficient, allowing a rider to drop their time by minutes during a long course.

Time trials may also form individual stages of stage races. By incorporating time trial specialists into a cycling team, the team can lower its aggregate time dramatically.

In relatively flat mass-start stages and races, time trialists often work as domestiques for their team leaders, or participate in breakaways. [1] Some riders who are primarily time-trialists have also been able to compete in everything but the steepest climbs because of their good power-to-weight ratio. Tour de France winners Miguel Indurain, Jan Ullrich and Bradley Wiggins were primarily time-trialists but were also among the best in the mountain stages during the years in which they won the Tour de France. Likewise, Tom Dumoulin was able to win the 2017 Giro d'Italia by defending the lead he had built in the individual time trial in subsequent mountain stages.

Famous time trialists


See also

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  1. 1 2 Mahé, Louise (23 March 2015). "What type of Tour de France rider are you most like?". Cycling Weekly . Retrieved 25 March 2015.