At altitude, the air pressure is much lower, therefore reducing the air density. Cycling Analytics users can see all this data for all times between one second and two hours with a chart like the one below, and It’s important to keep in mind that this data represents what people have actually done, and because most people haven’t attempted a maximal effort at all durations, these numbers are lower than the true potential maximums of the population it represents. The Olympic gold medalist set a distance of …
Since then Alex’s two major backers have made noticeable developments on their equipment: Canyon and Endura.
Log In Now he’s announced a second attempt and is confident he can take the record back, I’ve decided to revisit the maths and see what is required to overhaul Wiggin’s 54.526km.Since I last crunched the numbers Movistar have released Dowsett’s power data from his hour record set in May 2015. The recreational rider, on the other hand, might be only able to sustain this wattage during a 45-minute or hour-long spin class. All the data below and more is shown to Cycling Analytics users in interactive charts on the athlete statistics page, so consider Just like 5‘11” males on dating sites, it looks like a lot of guys don’t want to admit that they have an FTP of 190W or 290W when it could be 200W or 300W instead. Firstly, let’s assume he gets some superb atmospheric conditions with a low air pressure of 1000mBar and an optimum aerodynamic-physiology balance of air temperature of 28 degrees Celsius, giving an air density of 1.145kg/mNext, let’s say Alex fits some Vittoria Pista Evo CL tubulars, lowering his Crr from 0.0020 to 0.0017.
A Tour de France rider will average 220 to 320 watts for a four-hour stage; that’s an intensity most recreational riders can sustain for only an hour or so. This is a huge power increase at world class level, and is likely beyond the reach of Dowsett, even in peak form.
I had previously done some maths on Dowsett’s record to see what power he was putting out and what he might be able to achieve in the future. Canyon have released an updated Speedmax time trial bike and Endura have a new silicon bead trip technology that has been employed by the Movistar pro cycling team over the past season. Optimising his drivetrain with a WattShop DirtyFast waxed chain alongside some oversized PEEK carbon-fibre chainrings from The final, most crucial, value that Alex can work on is his CdA. There is less resolution for this data because there are a lot more males than females that use Cycling Analytics.It’s one thing to say you have an impressive FTP, but it’s something else to demonstrate it, so let’s now look at the best power outputs that Cycling Analytics users have sustained for various durations. Cycling Weekly Unfortunately, I don’t have any Crr (coefficient rolling resistance) values for the Continentals, however general opinion is that they don’t roll quite as well as the Vittorias.
I do have some roller derived Crr values for the Vittoria Pista Evo CL, which came out at 0.0017. Unlike standard chains and chainrings, this combination could save 1.5-2% of total power output.Taking all of these factors in to account we can calculate Dowsett’s CdA, which comes out at 0.1905mIf Alex was to ride Wiggins hour record of 54.526km on the same bike in the same conditions he experienced back in May 2015 he would have to increase his power output by 36w, requiring 431w to complete the distance. The extent of this is massively noticeable (air density can get as low as 0.90kg/mTo quote Alex - "We just want to get that record and do it in the most conservative, risk-safe way as possible. Notably, the median (50th percentile) twenty minute effort in watts per kilogram for males and females is exactly the same at 3.80W/kg, which means the average male and female Cycling Analytics user should be able to ride up a mountain at about the same speed.
But it's in me. The numbers show that it's in me." The most famous type of record is for upright bicycles meeting the requirements of the Union Cycliste Internationale (UCI). All data is shown for males and females in watts and watts per kilogram. It’s true, the numbers do show that it’s in him.
After one hour why not 24 or 48 hours? In comparison, Wiggins ran a Muc Off ‘nano’ optimised chain and rode with a large 58T chainring to reduce chain tension. Dowsett now only needs 420.5w to match Wiggins. Each row represents what somebody at the There is a lot more variation at the extremes.