Good blog. First off get rid of those sh*tty Dunlops! Metzler, Avons, even Bridgestones are a better tire for you application. Once you get to the heavy bike range (650#) you should run your tires about 3-6# above the recomendation. Two up riding 6-9# above the recomendation on the rear tire. Damn near every bike I've bought has those Dunlops on and I have given them a chance but the weak sidewalls make for a SQUIRLEY rear end on hard cornering with any extra weight on besides myself.

Good Luck!

Tyre pressures should be run at 10psi above manufacturers spec. The specs provided by manufacturers are provided to give minimum life out of the tyre. The police here in South Australia alway run at 10psi above. They get excellent wear rates and provide better handling.

I ran 10psi above on my old Vulcan 800 and averaged 18000 kilometres out of the rear. In three years of hard riding I never wore out the front tyre and only replaced the rear twice. When I sold the bike back in March the rear tyre had don 21500 kilometres and my nephew who bought the bike is still running the tyre. He rides to work daily so would have clock up many Ks.

Rob

I noticed the Vulcan 900 manual stated 28 PSI so I went out and bought myself a pair of Tire Minder valve stems speced at 30 PSI.  As long as they show green I'm good to go.  I have just passed 7500 miles on my bike and the tires look good and don't show any sign of bad or uneven wear.  I like what 'mjbearit' said below; sounds reasonable and logical to me - go with what the bike manufacturer says. - pjd1952