k75s tire pressures

[k75sboy]

I've been reading about the discussion of mets vs michelin tires and people talking about getting 10-19k miles on a front tire. I can't even come close to that. What tire pressures are you running front and rear for one-up riding?
E.J.

[Burnszilla]

Metzelers 330/550 say 42psi on them. I try to keep them at that.

[kbasa]

42psi would be the max pressure specified for the tire under maximum rated load.

Factory specifications, if I recall correctly are somewhere in the mid 30s. Overinflating your tires will square them off faster than anything.....

[Mr. Frank]

I ran the tires on my K75RT at 36/40 riding solo.

[basketcase]

I run the K11 at 36 psi on the front, and 41 psi on the rear.

[cuervo]

I have a K100RS but have also been told/read various values.

The best advice I've seen (from MOA, I believe), stated that you should fill your tires to whatever value gives a 10% pressure increase between cold and warm rubber.

Fixed values out of a manual do not account for differences between summer and winter riding. Changes between hot and cold rubber should allow for this.

[basketcase]

I can't do anything about hot and cold rubber, as that is controlled by the ambient temperature.

But, I religiously switch the air in my tire from summer to winter, and back as dictated by season, to maintain continuinity with the alignment of the planets, and the path of the sun around the earth's axis. :1drink

[knary]

Originally posted by k75sboy
I've been reading about the discussion of mets vs michelin tires and people talking about getting 10-19k miles on a front tire. I can't even come close to that. What tire pressures are you running front and rear for one-up riding?
E.J.

What tires are you using?

Back in the old days, when I was riding a yellow K75s, I usually got around 10-12k out of a pair of Michelin Mac 50s. Sometimes a little more, sometimes a little less. The worst I ever saw was about 3k miles out of some Dunlop 591s.

As for pressure: with the Mac 50s, I fiddled with the 10% rule for tire pressure and, IIRC, ended up with around 35 front, 38 rear.

[cuervo]

<i>Cold</i> and <i>hot</i> rubber as dictacted by not riding in the last few hours vs. riding over the last few hours, respectively.

"Cold" is ambient regardless if the temperature is 42 or 92 deg F, as long as the bike hasn't been ridden for several hours.

If you fill your tires to 40psi (cold) in July, the pressue will have decreased by December because of the colder ambient temperature. Therefore, if it is now December and if the last time you checked the air was in July, you'll probably need to add air.

Likewise, temperature <i>increase</i> between "cold" and "hot" is affected by the ambient temperature.

[dlearl476]

Originally posted by Mr. Frank
I ran the tires on my K75RT at 36/40 riding solo.

I think I ran 36/42 on mine, but the important thing to do is run the proper TP for your weight and load. (figured by the "10% rule")