Of the four rookies in MotoGP this season, Joan Mir is the least experienced, with just a single year in Moto2 and total of three seasons in grand prix under his belt.

But he's also the only newcomer to have secured a factory seat, at Suzuki, having been at the centre of a bidding storm between three manufacturers by the time he took a first Moto2 podium at Le Mans in May.

Three more rostrums and sixth in the world championship eventually followed, although Mir will be the only 2019 MotoGP rookie without a Moto2 victory.

While also not the fastest rookie in either of the post-season tests at Valencia and Jerez, Mir has been within half-a-second of Suzuki team leader Alex Rins and attracted praise from various onlookers.

"I was impressed by Mir. He was aggressive, but in a good way," said Tech3's Herve Poncharal after watching trackside at Jerez.

Such plaudits won't have come as a surprise to Pete Benson, crew chief for Mir during his lone season in Moto2 with Marc VDS.

Speaking to Crash.net at the Valencia season finale, the New Zealander credited VR46 champion Francesco Bagnaia with building on his rookie year to climb "a step above everybody" in Moto2 this season.

"In a class like this where everything is the same, the set-up is super important but the biggest thing comes down to the rider," Benson said. "Bagnaia had a couple of really good results at the end of last year, obviously realised he could do it, came back this year with a good team and good attitude and just smoked everybody."

But Benson - crew chief for Nicky Hayden during his MotoGP title year, followed by further world championships alongside Tito Rabat and Franco Morbidelli in Moto2 - saw the same kind of winning mindset in Mir, albeit without the Moto2 experience.

Indeed, Mir's Moto2 season almost mirrored Bagnaia's campaign of the year before, both claiming four podiums and top rookie honours.

"Winners all have this kind of mindset, where they don’t understand why they didn't win. Joan has that mindset. Which sometimes is a negative, because you can't win them all and there's a lot to learn in a new class," Benson explained.

"If you look at his performance this year, I think it's fair to say Joan has either been really good or really average. We've had four podiums - two seconds, two thirds - plus a couple of fifths and sixths and five DNFs.

"But up until Valencia, Joan had basically the same number of points as Bagnaia last year - the new race in Thailand being balanced out by not racing at Silverstone - and [they finished with] almost the same championship position: Sixth for Mir, fifth for Bagnaia.

"So when you look at Joan's season from a rookie-year perspective, it's been a really, really good performance. But he's still been really frustrated with his bad results.

"It's one of those things. These people have that determination and self-belief, but it still then comes down to learning how to ride the Moto2 bike and how to change riding style in different conditions."

Benson also said Mir's Moto2 performances did not correlate with his title-winning Moto3 form, causing some frustration.

"To be honest this year we’ve been surprised because the tracks we were really good at, were the ones we thought we wouldn’t be good at. And the ones where we've been bad were the ones where last year in Moto3 Joan was really good."

The reason was unclear, but "I think it's also expectation from him, that he thought he'd turn up and be super fast at those places - like the Red Bull Ring, where he absolutely blew everyone away last year and this year was for us a disaster.

"I think the expectation is sometimes bigger than you can produce and you start digging a hole. But then you have somewhere like Phillip Island, which I didn't think he would be good at and he nearly won."

Turning to Mir's prospects in MotoGP, Benson is confident the 21-year-old is on the right bike and team to make a success of the early graduation...

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Turning to Mir's prospects in MotoGP, Benson is confident the 21-year-old is on the right bike and team to make a success of the early graduation.

"I think he'll be fine. He's probably not quite ready to go - a bit like Jack [Miller] in 2015. But okay, Joan's had a year in Moto2 and done pretty well. He learns and picks up a lot of things really quickly.

"The Suzuki is a good bike, it's got better and better. Looking from the outside I think it's fairly user-friendly, which is really important and where a lot of people who have gone to MotoGP have found it difficult.

"For example, in the last couple of years everyone says the Yamaha has not been that great but still I think to learn MotoGP on it's a really good bike. If you want to win on it, it's proved to be more difficult."

While Benson would steer a first-year MotoGP rider towards a Yamaha, Suzuki, or Ducati of at least "middle spec", the Honda "is incredibly hard to ride, especially if you've got the last year's bike. It's not user-friendly in my view."

In terms of Mir's new team, Suzuki's track record with Maverick Vinales and Alex Rins suggests he is in safe hands.

"Suzuki have had Vinales and Rins come in as rookies and both come out the other side doing pretty well. I think they are riders of the same sort of calibre as Joan, so I think he'll be fine.

"I think 2019 might be a tough year but he's a smart kid, works hard and he's got a pretty good attitude. He's going to have to work a lot harder and a lot smarter, but that's just the step to MotoGP."

Bagnaia (Pramac Ducati) has so far proven to be the rookie to beat in MotoGP during post-season testing at Valencia and Jerez.

Benson is also pleased to see Jack Miller make a success of MotoGP after the 'brave' decision to leap straight from Moto3 to the premier-class.

"To go straight from Moto3 to MotoGP is an absolutely massive step," Benson said.

"Jack was brave and it's worked out for him. He's been lucky that he's been able to stay long enough to build-up to speed.

"Would he have done better had he gone to Moto2? We'll never know. I think he could have won a Moto2 championship for sure. I think he's that good.

"But he chose a different route and he's succeeded. "