The Hour
Author
Discussion

Trtj

Original Poster:

433 posts

160 months

Tuesday 4th November 2014
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So this craze has come back. Two records in very quick succession, by why do they measure the vector distance by the number and decimal of laps of the track rather than actual distance covered. Voigt was weaving quite a lot, I wonder if he actually went further!

anonymous-user

83 months

Tuesday 4th November 2014
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The black line is the measured lap, they will have to keep as close to this as possible without going underneath it for any significant period of time so its quite likely that Voigt went a bit further but there is no accurate way of measuring this so they just have to stick as close to the blakc line as they can. It would be interesting to see how much slower it is to take the "racing line" and ride up the banking on the straights before sweeping down for the corners rather than just stick to the shortest route round the track. They complete the lap they are on when the full hour is elapsed and then calculate the total distance travelled using a formula based on the time of the last lap before the hour and the time of the first lap after 60min.... i think.....

Its only back in the limelight because the UCI ditched the "athletes hour" record, now we can seee the upper limits of human potential without stupid constraints like the type of bike they have to ride all to satisfy the misty-ewyed Merckx fanatics, of course it makes it harder for the everyman to try and have a crack at it, they all need a Bio passport, but thats a small price to pay IMHO

Edited by anonymous-user on Tuesday 4th November 11:31

Daveyraveygravey

2,112 posts

213 months

Tuesday 4th November 2014
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Looking forward to seeing the others try.

It's got me thinking about my own performance; I've never fancied time trialling as such, but am thinking about planning a 20 mile course, possibly circular-shaped or square, to minimise wind and gradient efffects, and seeing if I can do it in an hour, solo. I can then try it every 2 months say, and see if I am improving. The local TT guys can do 25 miles in an hour, but that is way beyond me, I think.

anonymous-user

83 months

Tuesday 4th November 2014
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It gont me thinking too but I went one step further and mad e some enquiries at the Newport velodrome for a PH hour record attempt however there are a few complications, not least measuring distance and having a lot of people on the track at one time but I'll chat to a few people and see what can be done....

okgo

42,127 posts

227 months

Tuesday 4th November 2014
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That's a record I fancy sticking on the shelf Pablo wink

Voigt almost certainly lost a lot of distance through his line. Wiggins will take that back straight away due to track prowess, and then go and batter everyone else due to power/drag!

@ Davey, it will still be very weather dependant, if you make it as flat as possible it will help. But you could always find a local 25 mile time trial course and just ride that when there isn't an event on. 60 mins is considered the mark of a decent rider in a 25 mile TT. 50 minutes is the mark of a very decent rider.

Edited by okgo on Tuesday 4th November 13:35

anonymous-user

83 months

Tuesday 4th November 2014
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Well providing you dont get in anyones way wink

Daveyraveygravey

2,112 posts

213 months

Wednesday 5th November 2014
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okgo said:
...
@ Davey, it will still be very weather dependant, if you make it as flat as possible it will help. But you could always find a local 25 mile time trial course and just ride that when there isn't an event on. 60 mins is considered the mark of a decent rider in a 25 mile TT. 50 minutes is the mark of a very decent rider.

Edited by okgo on Tuesday 4th November 13:35
I don't understand that; if I do a ride that is roughly square or circular in about an hour, how will it be "very weather dependent"? The biggest factor is the wind, surely, and if I pick the right day, that won't change too much in 60 mins will it? I might even make it a 10 or 12 mile loop and ride it in both directions.

I know about those times, I think this rider will be looking at 70+ mins!

okgo

42,127 posts

227 months

Wednesday 5th November 2014
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A tailwind will help you much more in certain places that it would others.

Richmond Park is a diamond shape, yet by far the fastest wind direction is the one that pushes you up the slight drag, because with a roaring tailwind you can fly up it over 20 mph, with a headwind its a 15mph job. The lap times differ wildly based on the wind direction.

BMWBen

4,906 posts

230 months

Wednesday 5th November 2014
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Daveyraveygravey said:
okgo said:
...
@ Davey, it will still be very weather dependant, if you make it as flat as possible it will help. But you could always find a local 25 mile time trial course and just ride that when there isn't an event on. 60 mins is considered the mark of a decent rider in a 25 mile TT. 50 minutes is the mark of a very decent rider.

Edited by okgo on Tuesday 4th November 13:35
I don't understand that; if I do a ride that is roughly square or circular in about an hour, how will it be "very weather dependent"? The biggest factor is the wind, surely, and if I pick the right day, that won't change too much in 60 mins will it? I might even make it a 10 or 12 mile loop and ride it in both directions.

I know about those times, I think this rider will be looking at 70+ mins!
Unfortunately, you'll normally experience quite a lot of variation over 60 minutes. Have a look at the trace from this weather station:
http://www.chimet.co.uk/wind.aspx

That's on top of a tall beacon about a mile out to sea. The situation is *much* more variable inland.

Also, the course you choose may not be equally exposed to the wind in all parts.

No matter what way you string it, there will always be a wind direction that favours the course unless it's in a the middle of a wide open desert. And even if it is, then the variation over the hour will get you.

What I'm saying is, you need to buy a power meter if you want to measure things accurately tongue out

upsidedownmark

2,120 posts

164 months

Wednesday 5th November 2014
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Any wind is a (net) headwind: You will travel more slowly into a headwind than you will with a tailwind or no wind; therefore, even for a perfectly steady wind, and a perfect closed loop, you will spend more of your time going into a headwind than you will with a tailwind.

Therefore you loose more time in the headwind than you gain in the tailwind. Still air is always fastest over closed loop.

To bring that back to the 25 mile loop, not only will it have a favoured direction, time will also vary based on wind strength (all other things being equal).

You could do it on a turbo smile