MotoAmerica’s Supersport competitors will be using softer tires on the rear this season, and Talent Cup competitors will be using new profile tires to match the needs of the pure racing chassis on the new Kramer APX-350 MA machines they will be racing.

Dunlop’s Tony Romo told Roadracing World during the recent MotoAmerica pre-season test at The Podium Club that the standard Supersport rear tire will change from a 180/65 to a 180/60. The change will give competitors more grip at corner apex at the cost of less grip as they transition to driving out of the corner.

In addition, the rear will be offered in the softer R4 and R6 compounds, to change the balance between speed and lap time and increased tire degradation. The idea is to add more of an element of strategy and tire management to the races. One of the comments Moto2 World Championship riders made about the slicks Dunlop used to provide for that class was that the tires were not the stickiest but were absolutely consistent throughout the entire distance of a Moto2 race. Riders appreciated the consistency but it reduced the importance of tire management, a key variable in the racing.

The Talent Cup tires will be nominally the same size as the tires on the Junior Cup machines that have been replaced for the 2025 season. However, the profile – especially on the rear – will change to wrap the tread further around the edges of the tire. The Kramer, with its purpose-built chassis, is capable of much greater lean angles than the streetbikes used in the Junior Cup, so require tires that provide the necessary footprint at those lean angles.

Tires for the other classes – Superbike, King of The Baggers, Twins Cup and Super Hooligans – will be the same as last season, Romo said, although testing of new tires will be ongoing.

The 2025 MotoAmerica season starts with the non-points-paying Daytona 200 on March 8, and the Talent Cup is scheduled to kick off at the MotoGP World Championship round at Circuit of The Americas March 28-30.