Another Hour Record Attempt upcoming

Darkglasses · 02-05-2015 02:07PM

52.924 km is the new distance to beat according to Twitter.

funnights74 · 02-05-2015 02:13PM

Darkglasses wrote: »

52.924 km is the new distance to beat according to Twitter.

52.937 is the official distance according to the UCI. Something for Mr Wiggins to target on the 7th of June.

pprendeville · 02-05-2015 06:20PM

Darkglasses wrote: »

Just crossed 100 laps, marginally slower than Rohan Dennis (+8 secs to this distance) but his line is impeccable, should finish well.

What do you mean when referring to line? Not familiar with track lingo.

Darkglasses · 02-05-2015 06:27PM

pprendeville wrote: »

What do you mean when referring to line? Not familiar with track lingo.

His line through the turns is what I meant. Dowsett was really keeping it between the "Cote d'Azur" blue line and the black line, the ideal place to be. Compare that to say Dekker's attempt when he was veering kind of wildly even outside the red line. Dowsett's ride was a lot more efficient, essentially saving a lot of effort that Dekker used for no gain.

funnights74 · 02-05-2015 06:33PM

Darkglasses wrote: »

His line through the turns is what I meant. Dowsett was really keeping it between the "Cote d'Azur" blue line and the black line, the ideal place to be. Compare that to say Dekker's attempt when he was veering kind of wildly even outside the red line. Dowsett's ride was a lot more efficient, essentially saving a lot of effort that Dekker used for no gain.

Yeah it looked like the bike was on a mono rail, for the most part he was spot on huge control and discipline needed to keep it there. When Jens Voight set his record he was all over the shop, adding meters and wasting energy.

Darkglasses · 02-05-2015 06:38PM

funnights74 wrote: »

Yeah it looked like the bike was on a mono rail, for the most part he was spot on huge control and discipline needed to keep it there. When Jens Voight set his record he was all over the shop, adding meters and wasting energy.

Yeah Brandle's handling was similar in that regard, and Dennis's wasn't so bad but IIRC this is the first time we have a record holder who held a really excellent line throughout the ride since this spate of attempts started. Bobridge's attempt could have fulfilled that, but his pacing was way off. It's good to see a record holder who has the complete package of technique and fitness so to speak.

Beasty · 02-05-2015 06:54PM

Darkglasses wrote: »

Yeah, I think 120 psi is the absolute minimum a trackie would go for? He won't want the tyre to deform at all so 160-170 is possible.

Somebody with actual track experience can correct me on this

Probably 19mm tubs - 170+psi is standard - don't need to worry about comfort on an indoor track (and I'll run that sort of pressure outdoors)

I think they are now getting to the limits of what is humanly possible without either a change in rules or advance in technology. If he was at the black line throughout and kept a reasonably constant speed, I'm sure the likes of Wiggins could go a little further, but someone like Tony Martin would need to spend a lot of time preparing on the track to get his technique right

Darkglasses · 02-05-2015 07:08PM

Beasty wrote: »

Probably 19mm tubs - 170+psi is standard - don't need to worry about comfort on an indoor track (and I'll run that sort of pressure outdoors)

I think they are now getting to the limits of what is humanly possible without either a change in rules or advance in technology. If he was at the black line throughout and kept a reasonably constant speed, I'm sure the likes of Wiggins could go a little further, but someone like Tony Martin would need to spend a lot of time preparing on the track to get his technique right

I think the analyst said they were 22mm tubs, so really at the upper end pressure wise?

Beasty · 02-05-2015 07:14PM

Usually around 12 bar for 22mm which is 174 psi.

funnights74 · 02-05-2015 07:18PM

I think Wiggins could post a 53.2 or 53.3, his track experience will be hugely beneficial plus I reckon he will generate more power than Dowsett did today.In saying that for 45 mins I think Dowsett was coasting and speaking afterwards he wasn't in the least bit stressed physically and didn't rule out another attempt before the end of this year.

Irish Raven · 03-05-2015 10:30AM

I reckon wiggins will smash dowsetts time yesterday....but as last posters said....he looked very comfortable at end, and will be back to the table towards end of year....possibly didn't want to show wiggins his full hand....it's all a game of poker!!!

Beasty · 03-05-2015 12:38PM

The law of diminishing returns is definitely at play at this level though. All other things being equal an extra km will require around 25 extra watts of power. As I've already said I think the only way to now move the record on significantly is through a change of rules (which brought about the current spate of attempts) or some improvement in the technology

Maybe Wiggins can get to somewhere near 54km, but I don't think the absolute record of Boardman using the Superman position (over 56km) is in any danger at present

manafana · 03-05-2015 04:05PM

Darkglasses wrote: »

Perfect negative split, paced himself pretty much spot on. Not a big Dowsett fan myself but this is a super ride.

whats not to like, hes a great example to people to not let a disabilty or an illness hold you back?

His lap times where so smooth not sure he had more than odd slow down

wanderer 22 · 06-05-2015 02:24PM

Some interesting comments from Wiggo in the English Times today - basically saying he could go out and break the record tomorrow if he wanted but he wants to 'put it out of reach. If I do 55km it'll stand for 20 years'.

So he's fairly confident then..

Beasty · 06-05-2015 04:01PM

If he does it will probably kill this thread then.....

irishrover99 · 06-05-2015 04:33PM

Beasty wrote: »

If he does it will probably kill this thread then.....

There will be still wiggins haters

Junior · 06-05-2015 04:37PM

He's doing 55km Pace for 20 Minute efforts as it is..

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11088239_10152728192882257_1195167901054324324_n.jpg?oh=5688888194848c06b0cad51157182a11&oe=55DABF2D

dastardly00 · 30-05-2015 06:34PM

Wiggo's hour record attempt is next Sunday, June 7th.

The attempt will take place from 6.30pm-7.30pm, and Sky Sports 2 will broadcast from 6pm-8pm, with 30 minutes of build-up and 30 minutes of reaction afterwards.

Sky Sports have made a 30-second teaser trailer for it.

funnights74 · 02-06-2015 09:38PM

So this Sunday June 7th from 6.30 to 7.30 pm at the Lee valley Velopark Bradley Wiggins will set out to break Alex Dowsett's World hour record of 52.937. The general consensus is by how much will he break it, estimates vary from a conservative 54.5 to the optimists expecting the 55 Km mark being broken.
Bookmakers won't be offering decent odds unless you are lucky/skilled enough to predict his actual finishing distance.
Reading online earlier they are calculating the warm weather and high pressure expected in the UK this weekend will affect conditions, "air pressure is everything" that is the kind of detail that sports at this level is scrutinised to.
If he does go beyond 55 it will scupper anyone who have notions themselves. Alex dowsett certainly had more in the tank and no doubt Tony Martin will be watching closely.

Lusk_Doyle · 02-06-2015 09:40PM

55.765.

godtabh · 02-06-2015 09:44PM

Wiggins wants to beat the record, get to 55 and if time push for Boardmans record. I see him getting to close to 56.

In a Sky interview he said the weather is in his favour. He should smash it

Beasty · 02-06-2015 10:11PM

Threads merged

mcgratheoin · 03-06-2015 08:56AM

godtabh wrote: »

In a Sky interview he said the weather is in his favour. He should smash it

What's the significance of the weather? Does the atmospheric pressure have a bearing on wind resistance or is it a temperature thing?

eeeee · 03-06-2015 09:01AM

mcgratheoin wrote: »

What's the significance of the weather? Does the atmospheric pressure have a bearing on wind resistance or is it a temperature thing?

With high pressure the air is thinner, so It's easier to move through, and therefore faster. Low pressure gives denser air so requires more effort to move through, so slower. I think anyway!

Beasty · 03-06-2015 09:04AM

mcgratheoin wrote: »

What's the significance of the weather? Does the atmospheric pressure have a bearing on wind resistance or is it a temperature thing?

Low air pressure lowers the air resistance. Bear in mind it's the equivalent of a 55 km/h head wind (unless he can whip up a vortex:pac:)

See he's targeting 221 laps (55.25km) - think he's capable of 222 myself (and I'll go with 55.555km:p)

Beasty · 03-06-2015 09:09AM

Come to think of it, a one-hour Mexican wave (provided it's in the correct direction!) would not go amiss.....

Wouldn't be surprised if that velodrome is designed to ensure the air flows (from the air conditioning units) round in the "right" direction to facilitate fast times.

magicbastarder · 03-06-2015 09:22AM

Beasty wrote: »

Low air pressure lowers the air resistance.

gadetra wrote: »

With high pressure the air is thinner, so It's easier to move through, and therefore faster. Low pressure gives denser air so requires more effort to move through, so slower. I think anyway!

consensus at last!

magicbastarder · 03-06-2015 09:23AM

my understanding is that (pressure to one side) warmer air means a given mass of gas taking up a larger volume - so the warmer it is, the lower the mass of gas you're trying to push out of the way.

godtabh · 03-06-2015 09:51AM

This brings back memories

http://www.engineeringtoolbox.com/air-density-specific-weight-d_600.html

Temperature
- t -
(oF) Density
- ρ -
(slugs/ft3) x 10-3 Specific Weight
- γ -
(lb/ft3) x 10-2
-40 2.939 9.456
-20 2.805 9.026
0 2.683 8.633
10 2.626 8.449
20 2.571 8.273
30 2.519 8.104
40 2.469 7.942
50 2.420 7.786
60 2.373 7.636
70 2.329 7.492
80 2.286 7.353
90 2.244 7.219
100 2.204 7.090
120 2.128 6.846
140 2.057 6.617
160 1.990 6.404
180 1.928 6.204
200 1.870 6.016
300 1.624 5.224
400 1.435 4.616
500 1.285 4.135
750 1.020 3.280
1,000 0.845 2.717
1,500 0.629 2.024

godtabh · 03-06-2015 09:52AM

That table didnt work great.

The higher the temp the less dense the air. If the air is dense it becomes like trying to pedal through trickle when going at high speeds. A lot more effort is required.

Another Hour Record Attempt upcoming

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