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Testing is a difficult business, and Monday tests are the worst, especially if your problems only manifest themselves when the grip is low.

The race on Sunday lays down a nice layer of rubber, and by the afternoon of the test the next day, there is so much rubber on the track that traction is never an issue.

If you have traction problems, you have a brief window in the morning where you can replicate those problems. That window also falls when the track is coolest, which means more grip again. You can’t win.

The grip on Monday morning at Brno gave a brief window for those who were struggling with grip, riders like Danilo Petrucci, manufacturers like Yamaha. Petrucci found a small improvement in that time, falling back on a setup they used last year which helped in braking, but he illustrated the problem he faced with an example.

And the winner is… Takaaki Nakagami! Or at least the LCR Honda rider’s name sit atop the timesheets at the end of the final day of the final MotoGP test of 2018. Which both counts for a lot, and counts for very little at the same time.

The fact that Nakagami was able to do the time is proof that the 2018 Honda RC213V is a much better bike than the 2017 version which the Japanese rider spent last season on – see also the immediate speed of Franco Morbidelli, now he is on the Petronas Yamaha rather than the Marc VDS Honda.

It was also proof that Nakagami – riding Cal Crutchlow’s bike at Jerez – is a much better rider than his results on the 2017 bike suggest. And puts into perspective that this was the bike which Marc Márquez won the 2017 MotoGP title on.

But it also doesn’t really mean very much. Testing is just testing, and the riders don’t necessarily have either the inclination or the tire allocation to go chasing a quick lap time the way they do on a race weekend.

Nobody wants to risk it all just to prove a point and get injured just before they go into the winter break. And with the top 15 within a second of one another, and the top 7 within a quarter of a second, the differences are pretty meaningless anyway.

That’s what the riders will tell you, anyway. And while that is absolutely true, there is also a touch of the Big Book of Rider Excuses about it. Motorcycle racers race because they can’t stand the thought of anyone beating them, being faster than them.

Even when it doesn’t really matter. Just ask anyone who has played cards with a racer.

The trouble with post-season testing is that it takes place after the season is over. That is a problem, because the season runs well into November, so any testing after that is nearer to December than it is to October. And wherever you go inside of Europe to test, you will never get a full day’s testing done, even with the best of weather.

So it came as no surprise that when the track opened at 9:30am on Wednesday morning for the first day of a two-day test, nothing happened.

Or that nothing continued to happen for another couple of hours, as we waited for track temperatures to break the 20°C barrier, and make it warm enough to generate useful feedback. It is a perennial issue with no easy answers. Finding a warm, affordable track is tough this time of year.

The good news was that once the track had warmed up, we had ideal conditions for testing. Dry, sunny, warm if you were standing in the sun, though not quite so much if you were in the shade.

Despite the fact that so much time was lost to the cold, the riders ended up with a lot of laps completed, and a lot of work done.

By the end of the day, almost everyone bar Andrea Iannone had done over 50 laps, with Alex Rins having racked up a grand total of 87 laps on the Suzuki GSX-RR.

Iannone at least had an excuse, a crash costing him most of his afternoon. The crash, it seems, was a result of the Italian’s struggles to get to grips with the front end of the Aprilia RS-GP. A struggle he lost on this occasion.

And so the season ends for WorldSBK. The weather finally behaved at Jerez, and the four WorldSBK teams and three WorldSSP teams got a full day of testing in at Jerez.

Or rather, nearly a full day of testing: the track opened at 10am, but the riders didn’t go out for about 45 minutes, as cold track temperatures made it a perilous undertaking in those early minutes.

But the sun soon did its work, heated the asphalt, and away they went.

It’s been a difficult test at Valencia. The weather simply hasn’t played ball. Tuesday started wet, took a few hours to dry out, then rain started falling around 3pm, meaning the riders effectively had around two and a half usable hours on track.

Rain on Tuesday evening meant the track was wet on Wednesday morning, and in the chill of a November morning, it took a couple of hours before the track dried out enough for the riders to hit the track.

At least it stayed dry and sunny throughout the day, and the last couple of hours saw the best conditions of the test, times dropping until falling temperatures put paid to any thought of improvement. The teams may have lost time, but at least they had a solid four and a half hours of track time to work.

For half the factories, what they were focusing on was engines. Yamaha, Honda, and Suzuki all brought new engines to test, and in the case of Yamaha and Honda, two different specs.

Ducati was mainly working with a new chassis, aimed at making the bike turn better. Aprilia had a new engine and a new frame to try. And as usual, KTM had a mountain of parts and ideas to test.

If you want to see the law of unintended consequences in action, just take a look at MotoGP testing. The nature of testing has changed as manufacturers have suffered the consequences of not fully understanding the effects of the engine development freeze during the season.

Honda suffered, Suzuki suffered, and now Yamaha have suffered when they made the wrong choice of engine in preseason testing. They learned the hard way they had to get it right.

This has meant that the Valencia MotoGP test has become first and foremost about getting the engine in the right ballpark, giving the engineers enough data to work out the fine details over the winter. A tight track and cold air temperatures sees engines at their most aggressive, with plenty of horsepower on hand and very little room on track to actually use it.

The addition of Jerez as an official winter test – to be held at the end of next week – makes this even more explicitly an engine test. If the factories bring an engine that is manageable at both Valencia and Jerez, they are in good shape for next season.

As an aside, going to Sepang rather than Jerez to test in the past couple of seasons may be one of the factors that led Yamaha down a blind alley with their engine. Sepang is hot, wide, and fast, sapping power and allowing a MotoGP bike to stretch its legs.

It is the kind of track that can hide an overly aggressive engine, which then can rear its ugly head when the season is underway, the engine spec is frozen, and it’s too late to fix the problem.

The post-season test at Valencia is underway for the MotoGP Championship right now, giving us a hint at what to expect for the 2019 season.

The event is like a first date, with riders often getting their first laps on new machines, many of who are doing so with their new team as well.

This is also our chance to get to see some of the developments that teams have been working on for the next season, with the black fairings of test bikes hiding unknown technical secrets.

The announcement of the MotoGP test dates in the middle of last week have given a hint of how the 2019 MotoGP calendar is to take shape.

The official announcement is not expected for another month or so – Dorna are still waiting for the F1 calendar to be published, to try to avoid direct clashes with the premier car racing series.

The F1 calendar will not have the same influence as it had in previous years, however: since new owners Liberty took over the series, they have moved the start time of F1 races to 3:10pm Central European Time, some 10 minutes after MotoGP has finished the podium ceremony.

The MotoGP test schedule sees three official tests taking place over the winter, though one of them is before the official winter break. The MotoGP field will be at Jerez on the 28th and 29th November for the first official test.

This basically converts the previous private test, which most teams attended, into an official one, forcing all of the teams to take the track together, and to an extent, improving the coverage of the test.

The Monday test at Barcelona felt like a proper test. Normally, such tests descend into a simple shoot out in the last fifteen minutes, frail egos demanding to finish fastest, especially when only pride is at stake.

But perhaps the Barcelona race had taken a little too much out of the protagonists, or the hot and humid conditions were simply not conducive to spend even more energy risking everything for pointless pride, or perhaps the riders realize that the season is now so tightly packed with no summer break that they cannot risk injury when it doesn’t count. Whatever the reason, at the test, people concentrated on testing.

Not that the riders or teams were particularly forthcoming about what exactly they were testing. Some were more open than others: Suzuki said they were testing a new swingarm, and engine update, and retesting the new chassis they have been using since Mugello.

Danilo Petrucci tested a new exhaust, a new gearbox, and a new swingarm, which he promptly broke by taking it for a tumble through the gravel.

Once upon a time, a post-race test would see almost a full complement of riders taking part. But in the past couple of years that has changed, as spec software has meant fewer things to do.

The spec software, the engine freeze, the aerodynamics freeze: there is less to test, and so more factories are opting out of the one-day post-race tests.

So it was at Jerez on Monday that the factory Ducati riders, the Ecstar Suzuki team, and the Gresini Aprilia squad all decided to skip the test at Jerez in favor of some private testing at Mugello later in the week.

Behind closed doors, they can work a little more freely, away from the prying eyes of the press, and especially of a contingent of photographers.

There are other reasons to be wary of a post-race test. The track is in as good a condition as it is going to get on the Monday after a race. It has been swept clean by a weekend of racing, and the last class to smear its rubber all over the track is MotoGP.

So the bikes are treated to a clean, well rubbered in circuit, allowing lap times to drop. The average improvement between the race and the test was nearly 1.3 seconds a lap.

About half the 16 permanent riders who took to the track on Monday improved their times from qualifying. It is fair to say that Monday tests can be deceptive.

The importance of a private test can sometimes be measured by the lack of news emerging from the track. For the past three days, the Jerez circuit has resounded to the bellow of MotoGP and WorldSBK machines, as Honda, Ducati, Aprilia, and KTM have shared the track.

Yet other than a couple of social media posts on Twitter and Instagram, there was next to no news from the test. The only official source was a brief news item on the official website of the Jerez circuit.

Despite that, it was an important test for the factories involved.