Bridgestone has revised the MotoGP tyre allocation for the rest of the 2014 season to give riders more choice and increase the number available during a race weekend.
Each rider will now be able to choose from three front tyre options and the total number of front slicks they can use at each event increases from nine to 10.
The decision to alter the allocation follows severe tyre graining for many riders during round two of the 2014 championship at Austin.
Bridgestone made the three compounds available for the first time during last weekend's race at Termas de Rio Hondo in Argentina and, following positive feedback, the Japanese tyre manufacturer has decided to make it permanent.
"This change to the front slick tyre allocation will give riders greater choice at each race weekend," said Bridgestone's Hiroshi Yamada.
"It will also ensure we have a tyre allocation that can manage any weather or track conditions encountered.
"MotoGP machines are becoming ever more demanding on tyres, with improved laptimes and a greater variety in the performance characteristics between bikes, so an increased front tyre allocation will benefit everybody.
"Following the positive experience with the expanded front slick allocation at the Argentine Grand Prix, we proposed to offer three front slick compounds to the rider for the entire season."
The FIM and Dorna have agreed to implement the change and it will take effect from this weekend's Spanish Grand Prix at Jerez.