
The MotoGP race at the 2013 Tissot Australian Motorcycle Grand Prix will now require a compulsory bike change, with official tyre supplier Bridgestone “unable to guarantee the safety of its rear slick tyres beyond 14 laps”.
The following was announced by Race Direction this afternoon:
1. The race distance will be 26 laps (previously scheduled to be 27)
2. Every rider will be required to enter the pits and change to their second machine with fresh tyres at least once during the race.
3. No rider is permitted to make more than 14 laps on any one slick rear tyre. This means that a bike/tyre change before lap 12 would require a second bike/tyre change to finish the race
4. Riders using ‘Factory’ and ‘Satellite’ machines will be required to use the ‘hard’ option tyre (B51DR). Extra quantity will be allocated by Bridgestone
5. Riders using CRT machines will be required to use the CRT ‘hard’ option tyre (B50DR). Extra quantity will be allocated by Bridgestone
6. The pit lane speed limit zone will be extended both on entry and exit and the exit route to rejoin the track will be marked by a white line in the runoff area; crossing this line whilst rejoining the track from pit lane will result in a penalty.