Both Ducati and BMW will have a change to their fuel flow limits starting from this weekend's World Superbike Round.

This weekend's Dutch World Superbike Round is the first 'Concession Checkpoint' of the 2025 season.

At this checkpoint, there have been changes made to the fuel flow limits for both Ducati and BMW after the opening two rounds of the 2025 season.

A statement from the FIM stated: "Following the conclusion of the first two MOTUL FIM Superbike World Championship races, corresponding to Concession Checkpoint 1, the FIM has evaluated the manufacturers’ performance using the MSMA algorithm, as stated in the MOTUL FIM Superbike World Championship Regulations.

"According to article 2.4.3.2 of the FIM WorldSBK Regulations – Overperformance Penalisation – the performance values for both Ducati and BMW have exceeded the -0.250 threshold and remain below the -0.500 limit. As a result, both manufacturers fall within the range defined for a Step 1 Fuel Flow reduction.

"In accordance with article 2.4.2.2 of the WorldSBK Regulations, a Step 1 Fuel Flow reduction equates to a decrease of 0.5 kg/h. This adjustment will come into effect starting from the next round at Assen.

"The FIM will continue to monitor manufacturer performances at each Concession Checkpoint to ensure a balanced and competitive Championship."

These fuel flow limit changes came into place after the Italian and German manufacturers dominated the opening two rounds.

Ducati were the dominant force at the season opener in Phillip Island when four different Ducati riders featured on the podium and Nicolo Bulega won all three races.

At Portimao, it was Toprak Razgatlioglu and BMW who dominated proceedings for the second round. The Turkish rider won all three races on the M1000RR and was joined on the podium by Bulega and his Ducati teammate, Alvaro Bautista.