Being a replacement rider is never easy. Being asked to replace a factory MotoGP rider is always an honor, and one which nobody wants to turn down, but it also means being thrown in at the deep end, with a new bike, new tires, and sometimes even new tracks to learn with little or no testing.

Bearing all that in mind, experience can make the world of difference. So when Suzuki were forced to replace Alex Rins, after he broke his left arm in Austin, they turned to one of the most experienced riders around.

Sylvain Guintoli spent five seasons in 250s and two full seasons in MotoGP, before heading off to World Superbikes, where he won the title in 2014. He is currently racing the brand new Suzuki GSX-R1000 for Bennetts Suzuki in the BSB championship.

In Barcelona, I found myself alone at Guintoli’s debrief, and had a chance to spend fifteen minutes talking to the Frenchman.

We had a wide-ranging conversation, covering topics as diverse as the changes to the bikes and tires since 2008, the character of the Suzuki GSX-RR MotoGP bike, and how it compares to Suzuki’s production GSX-R1000.

Spanish tax authorities have been stepping up their game in recent months, and now they have two high-profile cases to show for their hard work. This matters in the two-wheeled universe because one of the case involves former MotoGP racer Sete Gibernau.

According to prosecutors in Barcelona, Gibernau defrauded the Spanish government of roughly €2.8 million. Gibernau on the other-hand says that during the time in question, from 2005 to 2006, he did not live in Spain, but instead lived in Switzerland.

Spanish prosecutors however state that Gibernau did not live in Switzerland, like he says, but instead lived in Esplugues de Llobregat, a province in Catalunya.

It is not often that journalists get to speak to team managers at length, but test days provide the perfect opportunity to do just that. So it was that a small group of journalists attending the tests sat down with Suzuki team boss Davide Brivio to discuss progress so far.

There was a lot to talk about. There have been rumors that Andrea Iannone is not fitting in well with the ECSTAR Suzuki team, and is currently engaged in talks with Aprilia about moving there for the 2018 season. Some of Iannone’s issues are down to his problem adapting to the bike, and trying to fix his feeling with the front end.

Brivio spoke to us about Iannone’s situation, and the development of the GSX-RR. He also talked about the benefits of a satellite team, what Suzuki is doing to improve the spec electronics package, the test program at Barcelona, and the return of Alex Rins for the test.

It was a long discussion, but there was plenty to go over. We think you will enjoy it.

Episode 54 of the Paddock Pass Podcast sees David Emmett and Neil Morrison doing double duty, as they cover the last two rounds for the MotoGP Championship’s – the Italian GP and the Catalan GP.

The show’s focal point is obviously the double-win for Ducati Corse and Andrea Dovizioso, as the Italians are clearly finding their stride this year with the GP17. Dovizioso’s double also means a shake-up in the MotoGP Championship standing, which David and Neil discuss at length.

The brings up a conversation about what is happening inside the Honda and Yamaha garages, as both factories seem to be struggling this season, though at different times, at different tracks, and under different conditions.

The show also covers the events of Monday’s MotoGP test at Barcelona, which sees some talk of Yamaha’s different chassis, and what tires Marc Marquez prefers from Michelin.

The conversation then turns to the Moto2 and Moto3 championships, before the guys talk about their winners and losers of the two weekends.

As always, be sure to follow the Paddock Pass Podcast on Facebook, Twitter and subscribe to the show on iTunes and SoundCloud – we even have an RSS feed for you. If you like the show, we would really appreciate you giving it a review on iTunes. Thanks for listening!

Why go testing on Monday after a race? Even though riders are pretty drained after a full race weekend, riding on Monday provides really useful feedback. First of all, the track is clean and already rubbered in.

Weather conditions are usually close enough to race day to provide good comparison. But above all, the riders are already up to speed, so no time is wasted.

Johann Zarco put it very nicely: “I enjoy it so much, because you don’t lose half day to find the feeling, you already have the feeling,” the Frenchman said. “You just wake up, warm the bike up and you are ready, and you can start to work.”

“We did the same today. It’s good anyway. Even if you are tired from Sunday, you go on the bike, going over 300 km/h and that’s just a nice life!”

Are Michelin deciding the 2017 MotoGP championship? That would be an easy conclusion to draw after the war of attrition which the Gran Premi de Catalunya at Barcelona turned into. It would also be inaccurate.

This race, like the race at Jerez, was about managing tires in poor grip conditions, with the added complication in Barcelona of extremely high tire wear. The riders and bikes which managed that best ended up at the top of the results sheet. The bikes and riders which struggled with that went backwards, and lost out.

And yet Michelin undeniably has a role in all this. After the race, Honda boss Livio Suppo pointed out that we were seeing different manufacturers do well at each different race.

The pendulum swings between one and another, as a particular team or a particular factory hits the performance sweet spot for the tires, and gets the most out of them. At the next race, it’s a different rider, a different bike, a different team.

The criticism Suppo had was that the sweet spot for the tires could be hard to find. “The tires seem to have a very narrow operating window. If you get it right, you can be competitive,” he told me.

If you didn’t get it right, if you couldn’t find that operating window, you are in deep trouble. “Maybe it would be better if that window was bigger.”

That may be true. When Bridgestone were official tire supplier to MotoGP, their tires had a much wider operating window. But that tended to reward the teams with the biggest budgets to spend the most time analyzing data, finding the perfect setup, and the riders who could ride with inch-perfect precision for 25 laps.

That left little room for improvisation, for adapting to circumstances, for the element of surprise. Whether you prefer the Bridgestone way, rewarding relentless precision, or the Michelin way, rewarding the ability to adapt quickly, is probably a factor of where you as a fan fall on the Motorcycle Racing Purist Scale.

However you feel about it, though, the racing in the Michelin era is undeniably more entertaining.

Sunday at Barcelona is going to be a war of attrition. Everything is conspiring against the riders, and most especially the tires.

Temperatures are expected to rise even higher than they were on Saturday, when air temperatures hit over 32°C, and track temperatures climbed to 55°C and above.

Those are punishing temperatures in which to race a MotoGP bike, especially at Montmelo, where the heat gets trapped in the bowl of hills which holds the circuit.

Then there’s the tires. There is much complaining about the lack of grip and the fact that grip drops off a cliff after seven or eight laps.

It would be more accurate to blame that on the track, though: the Circuit de Barcelona-Catalunya has not been resurfaced in twelve or thirteen years, and is very heavily used, both by bikes and by cars.

That has created a surface which is both too smooth to provide grip, while simultaneously being incredibly abrasive.

That sounds contradictory, so when Michelin boss Nicolas Goubert spoke to a group of journalists on Friday night, I asked him to explain. The Frenchman explained that grip and abrasiveness came from two different parts of the surface.

Asphalt (or rather, a road or racing surface) consists two parts: binder and aggregate. Aggregate is basically small stones, specially selected for size and shape. Binder is usually a special formulation of bitumen, often containing other ingredients.

There are a lot of reasons to visit Barcelona. It is one of the greatest cities in the world, a triumph of the architectural movement known as Modernisme, a vibrant center of culture, a place where you can eat, drink, and sleep well, after a day spent gazing mouth agape at some of the most remarkable buildings created by human hands, and human minds.

Once upon a time, the Montmelo circuit was also a good reason to visit the city. A track full of fast, sweeping corners challenging riders and bikes in equal measure.

That was before the aging asphalt turned the track greasy in the summer heat, and the repeated abuse from fat F1 tires left the surface rippled and bumpy, cracked and patched.

Tragedy struck with the death of Luis Salom – probably the victim of a wayward bump sending him flying towards a patch of gravel-free run off – and the Safety Commission (consisting of MotoGP riders, Dorna, and the FIM) decided to neuter the second half of the track, removing one of the fastest and most furious final sections on the calendar. There is little left to love about Montmelo.

I asked several riders whether it would be possible to race in Montmelo next year if the track had not been resurfaced. The response was unanimous. “No.”

Worse than that, Bradley Smith explained how the Safety Commission had grown impatient with the circuit, which has been singularly unresponsive to their requests to adapt the track to make it safer. Hopefully, MotoGP would not return, Smith told us bluntly.

“That’s finally what it comes down to. This is the only track on the calendar that’s not actually reacting to Safety Commission / rider / organizer’s requests. So at some point, you have to give them an ultimatum, and I think that this is the last year that they’ll be in that situation. We have enough people that want us to go race there, we don’t have to come here.”