What constitutes the most impressive individual time trial performance - is it solely based on the riders outright speed, or should factors like the parcours, weather conditions, and equipment also be taken into consideration?
Take for example, Wiggins TT at the 2012 Tour de France, where he averaged 54.3 km/h over 53.5 km. While his speed was undoubtedly impressive, was it made more so by the relatively flat and sheltered course, or does that detract from the achievement?
On the other hand, riders like David Millar andFabian Cancellara have both produced remarkable time trials on courses with far more demanding terrain - is it not more impressive to maintain a high speed on a hilly or mountainous course? And how much of a role should bike technology play in evaluating the impressiveness of an ITT - does a riders choice of equipment, for example aerobars, disks, or skinsuits, diminish their achievement or merely represent a shrewd tactical decision?
Is it possible to truly compare performances across different courses, or would it be fairer to limit comparisons to specific courses or events? For example, does a riders time up Alpe dHuez hold more significance than their time on the rolling roads of the Vuelta? Conversely, should the fact that some courses favor certain types of riders (e.g. larger builds on flat courses or smaller riders on hilly courses) be factored into our evaluation - would it be fair to say that a riders impressive performance is simply a product of being suited to the course?
How should we rate performances in which the rider benefits from a tailwind or drafting off other riders? Do these factors simply represent savvy tactical decisions or do they somehow lessen the impressiveness of the performance?