Hot tire pressure.
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Stage IV
Joined: Jun 2016
Posts: 4
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From: Louisville, ky 40220
Hot tire pressure.
Does anyone have " real" info on what the tire pressure on warm/ operating tires should be. What is the ideal pressure for running tires? Please do not refer me to cold pressures or nitrogen. I have active monitoring and ride in extremes of temperature and altitude and the cold pressure info is not sufficient for my riding style. I'm looking for more than just another WAG on this subject by everyone that has no clue what I'm talking about plz. For sake of the conversation, assume I understand the basics of thermo and fluid dynamics. Thanks
HDF Community Team
Joined: Nov 2012
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From: USA
Then you already understand PV=nRT, and can go from there based on the operating temperature of the tire after it's been run a bit.
But far more simply, set the cold pressure before you ride, note the higher pressure after you've ridden a bit in the heat. That gets you the value.
But far more simply, set the cold pressure before you ride, note the higher pressure after you've ridden a bit in the heat. That gets you the value.
Extreme HDF Member
Joined: Sep 2010
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From: Phoenix '53, '88, '09 Big Twins
doesn;t much expand with heat or elevation= more stable psi in your tires.
will settle most concerns.
regularly ride from 800 to 8000 feet.
regular ol' air makes a diff. nitrogen doesn;t.
in your other post you note a 5 psi or more change, that wouldn;t be outside the realm of normal- and for some riders in some conditions you might feel the difference how the rubber meets the road.
nitrogen solves that too, I take my filler tank to costco for mine.
Mike
will settle most concerns.
regularly ride from 800 to 8000 feet.
regular ol' air makes a diff. nitrogen doesn;t.
in your other post you note a 5 psi or more change, that wouldn;t be outside the realm of normal- and for some riders in some conditions you might feel the difference how the rubber meets the road.
nitrogen solves that too, I take my filler tank to costco for mine.
Mike
Last edited by mkguitar; Nov 22, 2016 at 03:01 PM.
Club Member
Joined: Jun 2007
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From: Bedford UK
Don't make more of this than you need to! Cold pressures are good enough. What your tyres get up to while you're riding is best ignored, unless perhaps you're racing. If you are really interested then write to your favourite tyre brand and ask them.
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Joined: Dec 2005
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From: poway
Does anyone have " real" info on what the tire pressure on warm/ operating tires should be. What is the ideal pressure for running tires? Please do not refer me to cold pressures or nitrogen. I have active monitoring and ride in extremes of temperature and altitude and the cold pressure info is not sufficient for my riding style. I'm looking for more than just another WAG on this subject by everyone that has no clue what I'm talking about plz. For sake of the conversation, assume I understand the basics of thermo and fluid dynamics. Thanks
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Joined: Jan 2011
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From: Sacramento, CA.
Does anyone have " real" info on what the tire pressure on warm/ operating tires should be. What is the ideal pressure for running tires? Please do not refer me to cold pressures or nitrogen. I have active monitoring and ride in extremes of temperature and altitude and the cold pressure info is not sufficient for my riding style. I'm looking for more than just another WAG on this subject by everyone that has no clue what I'm talking about plz. For sake of the conversation, assume I understand the basics of thermo and fluid dynamics. Thanks
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Here's a link to one of the threads this guy posted on the subject. He has at least 2 others.
https://www.hdforums.com/forum/softa...ht=JimGnitecki
https://www.hdforums.com/forum/softa...ht=JimGnitecki