Tire Pressure monitoring
#22
06-12-2018 | 06:53 PM
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From: Lake County, IL
For years all I did was check tire pressure before a ride. Now that I have a Heritage checking the back tire for me is a bear. I bought the FOBO tire monitoring system to help me with checking the pressure before the ride. Today was the first day I have had it working on a ride and it is almost too much information.
When I started out the front tire was 1.2 pounds under the 36 and the rear was 1.4 pounds under the 40. So I get to my destination, just a short 30 mile ride and check the pressures again. This time the front is 3.8 pounds over and the rear is 7.2 pounds over.
Talking to a guy during lunch he said he usually inflates his tires to 5 under before the ride to allow for heat. I am not sure I am ready to do that but the evidence tells me maybe it is a good idea.
What do you all think? Keep the pressure to recommended pressures or go 5 under?
When I started out the front tire was 1.2 pounds under the 36 and the rear was 1.4 pounds under the 40. So I get to my destination, just a short 30 mile ride and check the pressures again. This time the front is 3.8 pounds over and the rear is 7.2 pounds over.
Talking to a guy during lunch he said he usually inflates his tires to 5 under before the ride to allow for heat. I am not sure I am ready to do that but the evidence tells me maybe it is a good idea.
What do you all think? Keep the pressure to recommended pressures or go 5 under?
Owner's manual gives you tire pressures, tells you "cold". Case closed. You think those engineers have no idea that pressure goes up when tires heat up?
I was told long ago that blowouts are caused by under-inflation. I'd worry more about that than over-inflation.
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Hey Man (06-16-2018)
#23
06-12-2018 | 07:29 PM
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From: Virginia
Remember not to take that guy's advice on anything.
Owner's manual gives you tire pressures, tells you "cold". Case closed. You think those engineers have no idea that pressure goes up when tires heat up?
I was told long ago that blowouts are caused by under-inflation. I'd worry more about that than over-inflation.
Owner's manual gives you tire pressures, tells you "cold". Case closed. You think those engineers have no idea that pressure goes up when tires heat up?
I was told long ago that blowouts are caused by under-inflation. I'd worry more about that than over-inflation.
I guess that was why I made the post. It just surprised me the reading went so high. Also to note that the software wasn't in sync with the HD gauge. I noted the difference for future use and not be worried about it.
Sorry I didn't make this more clear in my OP.
#24
06-12-2018 | 08:57 PM
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From: Lake County, IL
I understand taking readings and applying air in the cold cycle. That is how I have done it for years like everyone else. Maybe my OP was confusing to some. I used my HD gauge like always to check my tires. I put in air and got the correct readings with my analog gauge. It was when I installed the FOBO fobs that I got a reading less than the gauge readings. When I got to my destination my phone said the air pressure was way above my original pressure. Never taking a reading while on a ride I never had any idea how more inflated the tires became.
I guess that was why I made the post. It just surprised me the reading went so high. Also to note that the software wasn't in sync with the HD gauge. I noted the difference for future use and not be worried about it.
Sorry I didn't make this more clear in my OP.
I guess that was why I made the post. It just surprised me the reading went so high. Also to note that the software wasn't in sync with the HD gauge. I noted the difference for future use and not be worried about it.
Sorry I didn't make this more clear in my OP.
#25
06-12-2018 | 09:18 PM
Tourer
Joined: Mar 2018
Posts: 462
Likes: 87
From: Southern California
Remember not to take that guy's advice on anything.
Owner's manual gives you tire pressures, tells you "cold". Case closed. You think those engineers have no idea that pressure goes up when tires heat up?
I was told long ago that blowouts are caused by under-inflation. I'd worry more about that than over-inflation.
Owner's manual gives you tire pressures, tells you "cold". Case closed. You think those engineers have no idea that pressure goes up when tires heat up?
I was told long ago that blowouts are caused by under-inflation. I'd worry more about that than over-inflation.
#26
06-13-2018 | 05:18 AM
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Grand HDF Member
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From: Virginia
He was a friendly enough guy. Like others have said I wouldn't be taking any information from him. Running 5 under just doesn't make any sense at all. I have never heard that before from anyone and for good reason.
#27
06-16-2018 | 01:35 AM
Road Warrior
Joined: Jul 2012
Posts: 1,305
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From: Ohio
Here is something to think about.
First of all I always set my pressures at the recommended pressures cold. And yes when the tires heat up from running the pressures will go up, that is to be expected.
But if you have the pressures in a rear tire going up more than they should I would look at rear wheel alignment. If the wheel isn't tracking properly you are creating additional friction which in turn translates into additional heat causing the pressure to go up higher than they would normally. Also misalignment causes excelerated tire wear.
First of all I always set my pressures at the recommended pressures cold. And yes when the tires heat up from running the pressures will go up, that is to be expected.
But if you have the pressures in a rear tire going up more than they should I would look at rear wheel alignment. If the wheel isn't tracking properly you are creating additional friction which in turn translates into additional heat causing the pressure to go up higher than they would normally. Also misalignment causes excelerated tire wear.
Last edited by P51Driver; 06-16-2018 at 01:40 AM.
#29
06-16-2018 | 01:49 PM
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From: PA
On the tire there is the MAX tire pressure, which is the max that tire can hold, period. Then there is the cold PSI that the manufacturer provides, usually on the label on the bike. Inflate to recommended cold PSI when the tires are at ambient (room) temperature, then ride. The tire pressure will go up when riding, but should not hit MAX.
#30
06-16-2018 | 07:06 PM
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From: Straight Jacket Memories and Sedative Highs
Going down the interstate in the rain last year. Felt odd, I suppose I should have done something. When it went lane to lane, with a flat tire I knew. Been planning on getting a monitor, but haven't yet. Even if you check your pressure every gas stop you can still pick up a nail. I have had two screws in my tires, that I discovered changing the tire.
People act like knowing is a bad thing. You can still ignore the information. If you don't want to know, why do you manual check the tires?
People act like knowing is a bad thing. You can still ignore the information. If you don't want to know, why do you manual check the tires?
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cacomly (06-19-2018)