Alex Dowsett's record was 112 laps. The number just above this entry will tell you he's almost there.

He's getting quicker. He's actually getting quicker. How on earth is he doing it?

Finally, we see he signs of a human being beneath that helmet. Wiggins is feeling the pain, but he has averaged more than 54 kph for almost 55 minutes, so I'll let him off.

Friends, you are watching history. You are watching something very, very special. Even if you're sat on your sofa, sipping a cuppa, shout your support for Wiggo.

Image source, Reuters

Those calves must be burning. The enamel on the teeth must be fading. The back, it's surely creaking. He's a machine, he doesn't care.

The crowd are electric. What a remarkable feeling it must be for Wiggo.

Wiggins has the record wrapped up. He's not going to drop a minute and a half in 10 minutes.

But how far can he go? He wants to surpass 55km, which would, quite frankly, be ridiculous.

But Wiggo is pretty much Mr Ridiculous. Or should that be Sir Ridiculous?

Steve Allinson: Reckon my HR is higher than Wiggo's ... and I'm only watching his hour record via a text board.

Michael Massey: Wiggins .. Olympic gold .. Tour de France winner... World time trial champion and now on the cusp of the hour record.

Image source, Getty Images

Bradley Wiggins will not only have the official record in his sights.

Chris Boardman, who set a legitimate record of 49.441km in 2000, is actually the man to have travelled furthest on a bike in an hour.

The Briton went 56.375km in 1996, but it was during a period where the UCI retrospectively dismissed attempts on high-performance, modern bikes.

It still tops the list of what is known as the "best human effort" - although it may be a bridge too far for Wiggo.

How much must this hurt? Does it hurt more than standing on an upturned plug? It might do.

Speaking of painful we're watching Seb Coe cycle on a stationary bike. He looks like he'd rather eat a thistle.

This is your 15-minute warning by the way. Do not go anywhere!

I spoke to Alex Dowsett on Friday. He fully expected Wiggins to break his record - but I'm not sure he expected to be blown out of the water.

This could be put out of sight for a very, very long time. He's added FIVE SECONDS since the last update.

Oh this is an absolute masterclass from Wiggins. Is there anything this man can't do?

I suspect he's a very talented gardener and still life painter to boot.

The gap is getting bigger and bigger. Alex Dowsett is being left for dust.

Image source, Getty Images

To give you a taste of the esteemed company Bradley Wiggins will be entering if he does the business today, here's a few cycling legends who have at some point held the hour record:

Henri Desgrange (first organiser of the Tour de France) - 35.325km in 1893

Fausto Coppi (two-time Tour de France winner and five-time Giro winner, pictured above) - 45.798km in 1942

Jacques Anquetil (first ever five-time Tour winner) - 46.159km in 1956

Roger Riviere (three-time world pursuit champion) - 47.347km in 1959

So, in case you were wondering, the numbers just above each update show you the number of laps Wiggins has completed, plus how far ahead he is of the world record pace.

He's over halfway and absolutely coasting.

Mesmerised by Wiggins? Tell us via #bbccycling on Twitter

Ben Wire: Can't believe I'm following a man going around in circles via a bbc text feed. Oddly mesmerizing. Cars in Canada next, then

KerryDJackson: House at standstill watching Bradley Wiggins

Who would have thought watching a bloke go round and round and round and round would be so much fun?

I am aware I am asking that question to people who are reading about a bloke going round and round and round and round. Which I assume is even more fun.

The conditions Michael speaks of is the weather around London. "It's indoors!" I hear you cry.

Yes, but the air pressure is pretty high, which makes it just a tiny, minute bit tougher for Wiggins.

British cyclist Michael Hutchinson on Twitter: "He's not going to break 55km. Which will disappoint a lot of people -- but with the conditions here today, it was never really on."

Century up! And, like English batsmen used to do with such regularity, the crowd is on its feed to applaud the reaching of 100 laps.

Image source, Reuters

And that gap is just getting bigger and bigger. It has surpassed a minute for the first time.

If, and it's a big if, Wiggins can maintain this, he will smash the record.

Right. So this is blistering and brave from Wiggins at the start.

His pace is 58 seconds quicker than Dowsett's record at the same stage. Can he maintain it?

The crowd decide to come alive for a brief moment.