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Laverty looking to ‘brake-out’ of no man's land
9 September 2013
By Stephen English
New experiences are always tough. Whether it's a first day at school or the first day at a new job. In most instances people are given time to adapt and find their feet but in world championship motorsport you're expected to hit the ground running and be on the pace immediately.
For MotoGP rookie Michael Laverty the challenge is compounded by a brand new machine and lack of grand prix circuit experience, the Ulsterman having spent the majority of his career racing Superbikes in Britain.
Even so Laverty has adapted well to MotoGP and impressed many paddock regulars with a series of strong races to start the season, notably a best-yet 13th place in the Spanish Grand Prix at Jerez.
On the opposite side of the Paul Bird Motorsport garage, Laverty's team-mate Yonny Hernandez is able to enjoy the benefits of the proven ART machine. But there is also no possibility for Laverty to share data with his team-mate in a bid to increase the speed of development on the all-new PBM bike.
"The hardest thing is not having a reference from a team-mate and someone to keep you on your toes," confirmed Laverty. "Some days you could be having a hard day and your team-mate could find something and it makes it a lot easier to try and find solutions."
Having to bear the brunt of development is a task that Laverty admits to enjoying, but with limited testing available race weekends are usually the only opportunity to try changes to the bike.
In recent races, Laverty has seen his pace stay constant relative to the race leaders, but his rivals have been able to find more performance and as a result the 31 year old has found himself in "no man's land":
"The last couple of races have been hardest because I've felt that the gap to the fastest has stayed constant but that Barbera, Corti and the FTRs have improved. The last couple of races I've been in no man's land; I'm faster than Staring, Abraham and Pesek but Petrucci, Barbera and Aoyama are faster than me and I'm hanging in the middle. That's where we need to understand where to improve the bike and get back to their level. Look at Edwards at Indy and Brno - he's been right on it and matching Espargaro."
Aleix Espargaro continues to be the benchmark that CRT riders aim towards and while the Aspar ART racer has consistently been the fastest CRT this season, and routinely mixing it with prototype riders, there have been occasions where Laverty has had similar pace to the Spaniard.
At Catalunya, one of Laverty's stronger events, he was able to match the pace of Espargaro during his longer stints in practice only to retire on the opening lap of the race.
While they may have lost a little ground recently, Laverty is confident that the team has found the causes of some of their issues and that solutions are close to coming on-stream.
The primary issue has been braking stability. In the early races Laverty needed to trust the front-end grip of the bike with the MotoGP-spec Bridgestone tyres very different to the Pirelli tyres used in British Superbikes.
This meant that exploring the limits of the tyres and trying to redefine his riding style to maximise grip under braking and initial turn in. Since then the limitation for PBM has a lot to do with the stock ECU supplied to some CRT teams by Dorna.
The development of this software is severely restricted and it has caused some unforeseen issues for PBM, with the team unable to utilise some aspects of their Aprilia engine that could improve stability under braking and offer potentially a significant performance advantage, according to Laverty. PBM is the only team using the control ECU with an Aprilia engine.
"The nature of the corner affects our bike, it's really hard to stop and that's due to our electronics and the Aprilia engine," commented Laverty. "On our bike we don't have the exhaust control valve that the Aprilia is designed to use and without it the bike is hard to stop. We've got the latest spec engine but unfortunately with the Dorna supplied ECU we have no way to control it so we need an upgrade on the ECU to allow us to control it.
"We'll put in a request to see if we can use it in future. But that's what we need to make the bike stop easier and it would fix a lot of our chassis problems. We're at a level where we need to find a way to stop the bike easier so that our braking zones decrease and our corner entry increases, because we can release the brake faster and the bike can keep turning. It's good that we have identified this area where the bike needs to improve but we need to experiment with the chassis to see if it increases braking support.
"At the moment my front end confidence in upright braking isn't good. We've got areas to work on and the target is still the ART. I think that after making so much progress in the early races that we thought that we can easily improve. I think we came out with a good package that was actually quite difficult to improve upon. We've yo-yoed around with some weekends where we were strong and others that we weren't."
To illustrate the challenge of developing a bike with only one rider a comparison can be made to the Moto2 class.
In Moto2 Tech 3 has struggled to field competitive bikes in part due to only having two riders provide data to their team. Even though they have had strong riders over the last couple of years, Tech 3 has had MotoGP rookie Bradley Smith and Moto2 poleman Xavier Simeon, the French team still mark a successful weekend with scoring a handful of points.
With data trickling through to Tech 3 the armada of Kalex and Suter riders has stolen a march. It is a similar story in MotoGP for Laverty and PBM. The season started competitively but as the year progressed the ART and FTR machines have made greater progress because of the added resources of having multiple riders providing data after each session.
"Obviously we've all gotten frustrated with the lack of progress in recent races but that's to be expected in many ways,” said Laverty. “We all want to make progress but this job is never easy; look at the resources and money that Ducati have spent and they haven't made much progress. We're a small team and we've come up with some ideas that didn't quite work out but we've got to keep trying.
"That's the problem with development sometimes you have to try things that aren't in the right direction and when you lose a session a weekend can be lost be very quickly. It's to be expected to have some tough weekends but we're keeping our heads down and working to find solutions. In MotoGP you have to have everything working well otherwise you can look very ordinary very quickly."
One area that Laverty and PBM are keen to exploit in the coming events is weight distribution. In recent races the team have tried various set-up changes and Laverty has also adjusted his riding style to place more weight over the front when braking.
Having watched videos of his rivals he could see some subtle differences compared to his riding style.
One of these areas was his stance under braking. Whereas Laverty would lock his arms under braking, getting as upright as possible and therefore providing a lot of resistance to the air, the likes of Marc Marquez and Dani Pedrosa were hunched over the front of their bike trying to place more weight on the front of the bike to generate greater load on the front tyre.
Adjusting your riding style is similar to trying to change your handwriting. It can be done but it is done with small and continuous changes rather than suddenly making a drastic change in style. Inheritably riders maintain the same style throughout the careers and the subtle differences go by mostly unknown to the general public.
For Laverty this season has seen him gradually adjust his style to try and get the most from his bike and most importantly the tyres used in MotoGP:
"I'm still riding very smooth and on track I don't look ragged but I'm on the edge. My style is smooth whereas someone like Marquez you look at and think 'bloody hell he's fast!' whereas for me it's smoother without big movements. It's less action packed and lively looking but I've changed it to a degree this year.
"I'm using the rear brake on corner entry more and it's different. At Brno to get the bike stopped I had to brake all the way through the corner so at some of the corners I was at 60 degrees lean angle and still pulling 15 bars of rear brake. That's a style that the Bridgestone tyres require and it's something that you don't have to do on a Superbike.
"I'm also trying to move my body around a bit more. I try and keep an eye on what the other riders are doing as well as looking inward at my own style. I look at a lot of the other riders and they keep their weight forward and that's something that I'm looking at doing now.
“They bend their arms under braking whereas I lock out under braking. They bend their elbows and hang out over the front, which is a weird position for me but I'm working on different things."
Finding a way to get the most from himself, an all-new bike and very different tyres has made this a season filled with challenges for Laverty. But the former British Superbike race winner is content with his progress and confident that his plans for next season will be finalised in the coming weeks and that he will remain with PBM.
"I haven't signed my contract for next year but we've agreed on money and terms with the team so it's just a case of getting everything boxed off in the next couple of weeks. I think that things would have to change drastically for everything to backtrack on."
PBM is expected to have both its riders on the same to-be-confirmed machinery next season.
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