Effective 2007:
- MotoGP class engine displacement will reduce from 1000 cc to 850 cc. The maximum cylinder bore will reduce from 81 mm to 75 mm. Engines will remain 4-stroke only, with 4 cylinders
- The minimum bike weight in the MotoGP class will be 153 kg
- No ride height devices of any kind will be permitted, including “holeshot” devices activated solely for race starts
- Fuel tank capacity will be reduced to 20 litres for Grand Prix races and a maximum of 11 litres will be permitted for the Sprint
...plus some other refinements.