Bradley Smith echoed the comments of his team-mate Pol Espargaro on Sunday evening in Argentina, and felt race direction's decision to alter the structure of the MotoGP race favoured the eight Ducati riders on the grid.

Smith also felt preference was given to the rear tyre concerns of Scott Redding when he - and many others, including Cal Crutchlow and both factory Ducati riders - felt Michelin's front tyre was a more pressing issue.

Shortening the race to 20 laps and enforcing a bike change at the race's midway point negated both Smith and Yamaha's main strength - endurance and consistency in the final laps.

"The circumstances of today's race were too biased to one manufacturer that seemed to have problems," said Smith.

"That's what I believe why the other manufacturers need to fight against the tyre company because to take away our strength of being strong at the end of races and basically hand the perfect scenario to the red bikes is hard to deal with.

"OK, they weren't winning today but a lot of the satellite riders took valuable positions off us that I don't believe they would have in a normal race scenario.

"It's something that needs to rectified because I complained of a front issue all weekend. I believed it was a safety issue but because it does not explode it's not a safety issue.

"It's something that I believe the organisers need to look into a bit more seriously but it won't change overnight."

Reflecting on a disappointing race, in which he finished a distant eighth, 50 seconds behind race winner Marc Marquez, Smith offered, "Never change something for the race today when you have a rhythm. You ride slow in the first four or five laps. When the setting doesn't work you ride slow for the rest of the 15!"