Aspar sporting director Gino Borsoi admits the team are sad to be saying goodbye to Eugene Laverty at the end of this season.
After two seasons in MotoGP, both spent with Aspar, the Irishman is returning to World Superbike where he will headline a new Aprilia-backed project.
"Honestly, we are not so happy because we lose one really good rider," Borsoi told Crash.net
. "We've done a really good season, an unbelievable season, every time finishing in the points - except one race that was not his fault.
"We really need a rider like this in our garage, but unfortunately we cannot go forward together next season."
Laverty is currently eleventh in the world championship, one place behind the top GP14.2 of Hector Barbera and ahead of Pramac GP15 riders Scott Redding and Danilo Petrucci.
The 30-year-old has already scored almost eight-times as many points as during his rookie season, on an open class Honda, and has five-times as many points as team-mate Yonny Hernandez
So why is he leaving?
The answer is simple: Aspar could only acquire 2016-spec Desmosedicis for one of its riders, new signing Alvaro Bautista. The other rider will get the older GP15.
The same scenario will occur at Avintia, but the difference was unacceptable to Laverty, since he would not only remain on two-year-old machinery but face unfair comparisons with the performance of his team-mate.
"Unfortunately, we have one GP15 and one '16. [Laverty] wanted to ride a '16, but for us it was impossible to get a second '16 bike in our garage," Borsoi confirmed.
"We tried with Ducati. Of course we tried a lot because our target was to continue with him because we know his potential. But unfortunately we cannot have a second '16 bike and so he decided to leave."
Did it come down to money?
"No… Ducati cannot make any more [bikes]. It's not money. We were ready to improve the amount of budget to get the second  bike, but there was no bike to get. This is the story unfortunately."
While a Bautista-Laverty line-up slipped away, Borsoi hopes that Bautista will be a top ten contender on his return to the team with which he won the 2006 125cc world championship.
"We are very happy about Alvaro," Borsoi said. "We think that with Alvaro we can make good results next season. First because he is a good rider, we have a good memory of him, and he has done a good job this season with Aprilia - especially the race here [at Aragon].
"We know Alvaro has good potential. He will have a 2016 bike, so better than the 14. I think we will be able to fight for the top ten every race. I hope so!"
Hernandez's future at the team is still to be confirmed
amid rumours that Karel Abraham is also in contention for the remaining Aspar ride.
By Peter McLaren