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[chaos901]

36 and 40.  Mostly ride two-up.

[grc]

So the recommendation on tire pressure is 36 up front and 40 in the rear (2014).  I only bump this up a little when I plan to ride two for a longer trip due to the extra eight. Higher pressure will wear the tire out quicker especially towards the middle.  To me safety is my most important aspect and tire are so very critical. What do most of you run the pressure at?

Manufacturer's, car or motorcycle, tend to set their recommended tire pressures toward the low end of the acceptable range, to help the usually less than great stock suspension systems.  A softer tire will help cushion the bumps better than a hard one.  With that in mind, I like to use the manufacturer's recommendation as the absolute minimum, and the number on the sidewall as the absolute maximum.  Then I hit on something in between as my personal recommended tire pressure.  For instance, back in 2005 the recommended pressures were 36 front and 36 rear.  I run 38 psi front and rear, halfway between the recommended pressure and the max pressure.  I would never recommend exceeding the pressure listed on the sidewall, or running less than the pressure recommended by Harley.  I haven't kept up with the D407's but I was under the impression the max on the sidewall for those tires was 42 psi.  Is that correct, or am I out in left field?

Jerry

[ultrafxr]

The howling tire syndrome has increased with the tire width increases! All you can do is check tire pressures regularly and run MAX pressure allowed. 3-4lb low will cause a tire to heat, up shortening rubber life, wearing flatter in the middle sooner, making it "whine" on the corners. At least 45lbs in rear, 40 front. fwiw twinotter

I've got a Michelin Commander II on my '12 cuse7.  Wanted to try it hoping to get better mileage, less cupping / scalloping but no joy.  Really like the tire and mileage is great - have over 16k on it and could probably get a few thou more.  But it is so badly cupped that I'm going to replace it.  Really, really noticed during the SW GTG in Ouray.  Leaning into the curves on those twistys really made it howl.  Now I even hear it when going straight on the flat and level.  My indy tire guy also suggested running 45 psi so I'm going to try that with the new tire.  Still staying with the Mich.  I've just had too much heartburn over the years with Dunlops.