Here is a link to a pdf file ... which is the 2005 triumph rocket 3 owners manual
It shows the shows the correct location of the oil sump plugs (which are in a different position to 2004
rockets) on page 57.
And it shows under the tyres section that Bridgestone now supply officially approved tyres for the rocket 3 on page 98
keywords: oil change rocket 3 2005 sump pan plugs location