Pedro Acosta recently highlighted the upcoming test at Jerez as extremely important, calling it possibly the most crucial day of the season. The test is set for Monday, April 28, just after the Spanish Grand Prix. This one-day test will be the first official opportunity for teams to fine-tune their bikes since the preseason test in Buriram.

"This could be the most important day of our season," Acosta admitted about the Jerez test in an interview with MotoGP.com. "We have a lot of things to try."

Like all KTM riders, Acosta's start to the 2025 season has been tough. In comparison to his impressive rookie year, where he took five podiums and earned a factory team contract, Acosta has only earned 16 points so far, placing 13th in the standings. This contrasts sharply with his 54 points and fourth-place standing at the same point last season with Tech3.

Despite solid qualifying performances – finishing 7th, 5th, and 4th in the last races – Acosta and his bike are struggling to convert that qualifying pace into race results. "When it comes to qualifying, we’re much more competitive than last year, which is good," he explained for MotoGP.com. "But when we get to the Sprint races, it's like the grip disappears."

Acosta has pointed out that when he finally has grip, he can be competitive, yet he cannot figure out why their performance drops off between the end of qualifying and the Sprint race.

Another ongoing issue for KTM and Acosta is the rear-wheel vibration, which has been a problem for the team for over a year. "Whenever I talk about problems, it’s usually about vibrations," he shared for MotoGP.com. "It's always the same story. We really need to find a solution because it’s been going on for too long now."

He clarified that this isn't the typical "chatter" often seen on TV, but rather a deep, unsettling vibration that affects the bike's handling. "For me, chatter is when the rear or front wheel bounces, like the save Quartararo made in Q1 at COTA," Acosta explained for MotoGP.com. "What I'm dealing with is a vibration I feel when I open the throttle. The rear wheel shakes, but it’s not bouncing – it just makes everything harder to manage. And as time goes on, the whole bike starts vibrating more and more."

The noticeable change on the back of his KTM, which likely contains a mass damper, is thought to be an attempt to reduce the vibrations.

Before the Jerez test, the next race is in Qatar, which could be a turning point for Acosta, as he impressed there during his rookie year.