Max Min tire pressure settings in TPMS App

fnmag

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Im seeing the start of some uneven tire wear which started only after this 10% reduction in tire pressure for about 1000 miles. So Im not convinced yet that 38 psi is a safe place to be.
At 38 psi you will notice problems with tire wear.
Go back to 42 psi and Bob's your Uncle. :thumb:
 
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Interesting, wouldn't think 3 psi would make a difference. So what about it is uneven?
 

ST Gui

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Given the smaller volume of even larger motorcycle tires seeing abnormal wear at 3lbs low doesn't really surprise me. AV's bike may carry more weight on a daily basis that a lot of other STriders won't see. And a given tire choice might be more sensitive to air pressure variations.

I'm not particularly in tune with my ST in regards to tires. I keep them at 42/42 and can feel the difference in handling when a tire drops 3lbs or so. If you can feel it the tire is living it. My 'expertise' in the management and utilization of TPMS data is to make sure I'm at 42/42 (the universal answer!) before a ride. :D
 
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.....AV's bike may carry more weight on a daily basis that a lot of other STriders won't see...
Hey now, I resemble that remark!!
;)

Between my corpulent 250# (all muscle) body, loaded to the gills saddle bags, all my riding gear, and of course the farkles - yeah the poor ole 05-STP has his tires full.

Here’s where the pressure is now.... dang Harbor Freight gauge reads 0-170 psi, getting it exactly at 42 didnt happen this go.

Whats with this 9*F difference between front and back tire temperatures on a bike sitting in the garage for a week or so?

F34FCB3F-2C48-41E8-BC94-325A5F623149.png
 
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Whats with this 9*F difference between front and back tire temperatures on a bike sitting in the garage for a week or so?
Most likely because the wheel sensors stop transmitting a few minutes after you park, so the display is showing the last reading.
 

ST Gui

240Robert
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Maybe the larger volume and mass of the rear tire retains heat longer. Somebody previously opined that engine heat hits the rear tire and not the front for the most part. It's the drive tire and probably generates more heat. I don't pay it no nevermind.
 
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what's the claimed temperature accuracy spec on the FOBO units? Doesn't look very good to me if the bike has been sitting as long as you claim.
 

ST Gui

240Robert
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I don't think that's it. Mine aren't affected by that process, at least.
Same here. But my rear tire's temperature is always a few degrees higher than the front. Maybe I'll monitor it to see how it changes. I could swap the sensors and see how that affects the readings. But I probably won't.
 

ibike2havefun

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Same here. But my rear tire's temperature is always a few degrees higher than the front. Maybe I'll monitor it to see how it changes. I could swap the sensors and see how that affects the readings. But I probably won't.
When riding, the rear is warmer than the front on mine as well, but after an overnight sit they end up about the same temp.
 
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Time to add 3 psi more to the front after last weeks ride. Just the front, dont see any punctures

Disabling the front sensor to reset
B12AE5EC-925A-426C-A693-A455A3BA6CDA.png

Fill air, then re-enable the sensor
A6C82902-CAA7-483F-A275-F0422C7FCB70.png

Well that bout does it for now
30F840CB-F994-4014-9D81-D84B6576ACC2.jpeg
 
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The 3-5 psi per week loss on the front continues, but i know its the FoBo device’s mass bending the valve stem with rubber base ever so slightly thats the cause. A windex spray there confirmed it when i move the stem a bit.

So off to the FoBo site and purchased their metal T-valve stem which is metal all the way through the wheel. Soon Ill get it replaced.

236763
 
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what's the claimed temperature accuracy spec on the FOBO units? Doesn't look very good to me if the bike has been sitting as long as you claim.
I would not worry too much about the sensor temp accuracy because the sensors are in the airstream, not inside the tire. The tire pressure is the best indicator of temperature inside the tire; temperature is the Only reason the pressure is rising while riding. Tire temperature increases due to three factors, flexing of the sidewalls while rolling, friction from sliding on the pavement, and sunlight. My tire pressure will go up or down 1 or 2 psig when I change direction and the tire goes from sunlight to shade or vice versa.
 

ST Gui

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Before TPMSs how many riders even thought of tire temperatures away from the track? I never did. So now we have them and suddenly temperatures and max pressure alerts are a thing. Maybe it's fun to keep track of another metric but it means nothing to me and the added distraction could cause a fiery death! :eek1: I just need to know if I have enough air to start the day and maybe verify that at a rest stop.
 

T_C

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how many riders even thought of tire temperatures away from the track?
Thought about it... but never lost sleep. Nice to have on a long day, TPMS, not temperature. Never know when you get the slow seep that deflates the tire over a few hours. When you are doing long days in the saddle and some on the slab you may need to check the tire more then once or twice.
 
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