Suzuki r▨iders Alex Rins, Joan Mir and Sylvain Guintoli used the final MotoGP test of the seaso﷽n to narrow down new parts for inclusion on next year's GSX-RR.

The most urgent task is to confirm the eng🌼ine design - the factory's nine podiums this yea✅r meaning they lose the concession of modifying their powerplants during the 2019 season.

The last time that happened, in 2017, the ♓team were stuck with the wrong engine character during a podium🔴-less season - a mistake Suzuki is eager to avoid this time around.

"Losing the concessions has made our work during these test days even more relev𒅌ant because obviously once th🔯e engine choice is settled, that will be it," said test rider Guintoli.

Rins - stepping up to team leader - tried a new chaꦫssis, electronics and swingarm as well as new engine during the two days at Jerez.

The Spaniard, who was tenth fast🉐est overall (+0.577s), described the new engine spec as "very positive" but "not yet fina🔯lised."

"These two days have been very positi🌟ve because we tried everything - new chassis, new engine, and lots of comparisons," Rins said.

"[On day two] we started with the 2018 chassis and the new engine spec. and we tried all the suggestions that the engineers made, it was very positi꧅ve.

"We haven’t finalised yet, but tꦗhe engineers will be wo🐻rking on this…. We feel like we can have a very competitive bike.”

A big accident on the opening day at Jerez left rookie team-ma✃te Mir walking like 'Robocop'ℱ for the final day of 2018 track action.

But that couldn't wipe the smile from the face of the new factory Suzuki rider, who also💧 tried the new chassis and engꦕine.

"I'm a bit destroyed, because after the crash yesterday I woke up like Robocop!" he joked. "I have a bit of pain all🅰 over my body and when I ride the bike I feel it. But it was not a pr𝄹oblem to try all the things that we tried."

The former Moto3 champion, who moves to MotoGP after a single year in Moto2, added: "Today was more a technical da൲y - to try new ♌parts for the bike, old parts with the new parts… A bit of everything! Rather than to make a time attack."

But, as for Rins, there were no obvious answers.

"About the new chassis, new engine and everything, we are not sure at the moment exactly what is🌼 better, but we gave really good information for the Japanese engineers this winter."

Asked if he was in danger of becoming confused by the new parts, after being🤪 the fastest Suzuki rider on day one, Mir 𓂃answered:"No, because we know what is good for me. We have a good base. I'm able to be really fast and also I had good pace.

"The problem is when you have to try something new that you don’t like, you have to try it morꦛe to [be sure]! But it's part of the job and overall the team is really happy and I'm happy with𒉰 the team. I think we are looking to February."

Team manager Davide Brivio 🔯said cranking out laps on different parts had been a "tough job, pretty boring for the riders but absolutely crucial.

"We have to put together all the best pieces and compose the puzzle, especially for the engine we have to take a decision 🐷now that will affec❀t the winter work and the whole new season.

"We have some pressure on for this, but that’s raci🌱ng a🅰nd the pressure is also our motivation.

"Alex, Joan and Sylvain all carried out this hard work, putting together lot of information that will now be useful for the engineeꦰrs, and I’m happy that Alex could also put together a positive lap tꦕime.

"So we can go into this winter bre♊ak feeling happy and hoping for aꦡ positive restart again in February in Sepang.”

Rins and Mir should get thei🍬r first chance to try the final 2019 engine spec at 🍰Sepang in February.