That second group on the road is large enough to be called a peloton now.

So the peloton are 20 seconds down on the leading trio of Impey, Stuyven and Trentin.

Called it - Stuyven is the man to join Impey and Trentin.

A trio of huge pedigree but they surely don't have enough of a gap to stay away for the final 50km.

There is be too much interest in bringing it back for a sprint in the group behind.

A Trek-Segafredo has flown across the gap to Trentin and Impey.

Jasper Stuyven perhaps?

The group behind has swelled and they are reeling in the front trio.

Counter attacks now starting behind as the second group on the road thins out.

That should mean Trentin and Impey are brought back soon.

Impey and Trentin's advantage down to 18 seconds now.

They have a very slim chance of staying away until the end if they can get over the top of Box Hill alone. Very, very slim.

Impey and Trentin hit the bottom slopes of Box Hill, the 2.5km climb with 5% average gradient.

Leith Hill is the tougher climb but Box Hill is held in higher regard after it featured in the 2012 Olympic road race course.

Bora and Katusha are nailing it on the front of the peloton to bring back that second group on the road.

Those teams are working for their sprinters Sam Bennett and Alexander Kristoff.

The race looks set to split apart once again on Box Hill.

From the overhead shots, it looks like the chasing group contains the likes of Michael Matthews, Ben Swift, Dylan van Baarle, Sep Vanmarcke, Jasper Stuyven, Oliver Naesen, Jack Bauer and Peter Kennaugh.

Some very strong riders there - but the gap to the peloton behind looks to be down to eight seconds now.

Trentin and Impey are 25 seconds clear out front.

Impey and Trentin have a gap of around 14 seconds on the chasing group.

The front two of Matteo Trentin and Daryl Impey are looking strong but may be better served by sitting up, waiting for the select group behind and working with them to distance the peloton.

That group would then have a very good chance of staying away to the finish.

Hmm, Peter Kennaugh has dropped off the wheels of his breakaway partners and is straight onto the race radio.

Tactical? Doubt it. Looks like the Manxman hasn't got the legs today. That's torn it for Sky's plan - he'll have to drop back to work for Viviani now.

Kennaugh is duly swallowed up by the group containing Michael Matthews.

The race has blown apart - it's not so much a peloton as a second bigger break that are chasing the front three now.

Michael Matthews - who won the green jersey points classification at the Tour de France - looks to have only one Sunweb team-mate left. That certainly wasn't in the plan.

Dimension Data are up there too.

This is a good move by Sky - sending Peter Kennaugh up the road into the break, knowing they still have Elia Viviani to challenge if it does come back for a sprint finish.

Orica-Scott's Daryl Impey has joined Kennaugh and Trentin. That's a very strong trio.

Quick-Step's Matteo Trentin has bridged across to join Kennaugh.

Others trying to close the gap.

Tao Geoghegan Hart is laying it all down on the front for Team Sky - are they setting this up for Elia Viviani or an attack from a team-mate?

Here's your answer - Peter Kennaugh attacks on the steep stuff and splinters the front of the peloton.

Team Sky's Owain Doull has had a puncture and is fighting his way back through the cars to rejoin the peloton.

A peloton that is riding at a ferocious pace set by Sky to prevent further attacks.

No sympathy. Do your best, Doull.

This is effectively the sixth edition of the RideLondon-Surrey Classic.

The first. in 2011, acted as the test event for the men's road race at the London 2012 Olympic Games and was won by Britain's Mark Cavendish - who did not repeat the feat at the Games.

The Classic has since been won by France's Arnaud Demare (2013), Britain's Adam Blythe (2014), Luxembourg's Jempy Drucker (2015) and Belgium's Tom Boonen (2016).

Boonen has retired, Blythe isn't in Aqua Blue Sport's line-up, Demare's FDJ team aren't here and Cavendish is, of course, still recovering from breaking his shoulder in the Tour de France.

That means Drucker is the only former winner racing today - he won a sprint from a reduced breakaway group. It will be a fair effort for someone to do similar today - the big teams look to be keen to set this up for a bunch sprint.

And that's that for Iljo Keisse, Mads Schmidt and Twan Castelijns as they are swallowed up by the peloton.

Cracking effort by that trio but a peloton stuffed full of elite World Tour riders were never going to let them go clear too late into this race.

They've got just over 80km to go.

The gap is down to 10 seconds and a Team Sky-driven peloton are about to catch the break.

The break of Keisse, Schmidt and Castelijns are being reeled in quickly now - the gap is down to 31 seconds.

If you've never heard of Iljo Keisse before, do yourselves a favour and type 'Keisse Tour of Turkey 2012 Stage 7' into your search engine of choice and watch the video that comes up on your video sharing website of choice.

The short version if you can't search right now - the Belgian pulled off one of the most remarkable wins in recent cycling history as he broke clear, crashed on one of the final corners but somehow picked himself up, calmly put his chain back on and held off a charging peloton to win.

That description doesn't do it justice, it's really worth a watch.