Accurately getting 15 psi into tires

[PW2013STL]

I use a pump similar to that on my shocks on my sleds, I find that when you have to unscrew the hose, lot's of times you will loose a little air! I can't picture how many times you would have to pump the thing to do a car tire size unit!! Think you would get very tired!!

That's why I use my air compressor to get close. A lot of pumps to add air, but it's free exercise:yikes:

 

[Steve W.]

Guages are most accurate when used in the middle of their range. So a 120# tire guage is not what I prefer for the front tires. Wondering what works good for you.

If you want a pencil-type gauge, look in the ATV section or the lawn mower section, you can usually find a low-pressure gauge that goes to 30 psi. If you want a round-dial type gauge, look in the same areas. Digital gauges seem to be the best, though.

While gauges may be most accurate in the middle of their ranges, a variety of gauges with similar or identical ranges from different manufacturers could have substantial variations, as could multiple gauges of the same model/style from the same manufacturer, although one would expect those from the same manufacturer to have smaller, variations but don't bet on it. The consumer has neither any idea of the calibration accuracy of individual gauges at the time of purchase nor the degradation of calibration over time and use.

And, when you do your comparison of several gauges, you may find that a few of them agree, but you still have no assurance that they are the 'accurate' ones. Even taking them to the tire store to compare against THEIR gauges is not much of an assurance. Where do you go to check accuracy?

This air gauge has a "no air loss" feature. I never here that frustrating FFFFT.

https://images.pepboys.com/images/productImages/76968100/20475.jpg

That is the gauge that I have settled on. I know that we have one in the Spyder, I think I also have one for my Suzuki.

15 PSI will lead to cupped tires. do your homework.

And yet, according to at least two of the tire experts here, 16 PSI is perfect. If using 15 PSI is cupping YOUR tires, it might be a matter of gauge accuracy, tire brand and construction or simply a matter of riding style. I think there might be a bit of 'homework' on YOUR end, too.

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[2dogs]

If my FOFO's are not lying to me, my tire pressures are constantly in flux due to many ambient influences. During a 200 mile Sunday ride over cold mountain passes and down into warm valleys and along twisty river gorges, my tire pressures constantly change. But, the tires ride well and hang onto the corners and there are no signs of them cupping. Buy quality car tires keep them properly inflated and that should be the least of your worries. Enjoy the ride. Bladder pressure ranks higher than tire pressure if you know what I mean. LOL

 

[IdahoMtnSpyder]

Accuracy of the gauge is not critical, repeatability is. Even if your gauge is off by 2 psi find the pressure reading on it that gives you the performance and tire life you want. But it needs to have good repeatability so every time you check you can be sure how much is it has really changed from that last time.

 

[IGETAROUND]

This is what I use, allows inflation, deflation, digital read out, easy push to connect and almost no loss pressure at disconnect. https://www.amazon.com/gp/product/B07C25C4CQ/ref=ppx_yo_dt_b_asin_title_o05_s00?ie=UTF8&psc=1


Al in Kazoo

 

[pidjones]

My GL1800 pressures changed constantly also.

 

[Peter Aawen]

If my FOFO's are not lying to me, my tire pressures are constantly in flux due to many ambient influences. During a 200 mile Sunday ride over cold mountain passes and down into warm valleys and along twisty river gorges, my tire pressures constantly change. But, the tires ride well and hang onto the corners and there are no signs of them cupping. Buy quality car tires keep them properly inflated and that should be the least of your worries. Enjoy the ride. Bladder pressure ranks higher than tire pressure if you know what I mean. LOL

My GL1800 pressures changed constantly also.

So do mine - and so should EVERYONE's! hyea:

Part of the reason for starting your front tire pressures out at a close to equal 'cold start' pressure is so that they will remain fairly close to each other in pressure once the tires have warmed up to their optimal operating temp (which should see an increase of about 4psi after an hour's ride ) and then vary a little as you ride/drive on, simply because they DO heat up & cool down continuously in response to the changing conditions & demands placed upon them.... But once they've done that initial 'warm up', any ongoing pressure changes should be 'fairly slight' or even 'minor', so that they remain reasonably close to their initially achieved 'optimal operating temp'! :lecturef_smilie:

 

[Plarimer]

I use the same pressure gauge that I’ve used for 15 years and it works just great. 18 in the front 28 in the rear. Works out perfect for me.

 

[Hoginedgewood]

This is what I use, allows inflation, deflation, digital read out, easy push to connect and almost no loss pressure at disconnect. https://www.amazon.com/gp/product/B07C25C4CQ/ref=ppx_yo_dt_b_asin_title_o05_s00?ie=UTF8&psc=1


Al in Kazoo

That's what I ended up ordering, but with more accessories and smaller range of the guage.

 

[TicketBait]

Guages are most accurate when used in the middle of their range. So a 120# tire guage is not what I prefer for the front tires. Wondering what works good for you.

see below: digital works best for me Also having the quietest air compressor is a joy!

 

[UtahPete]

This is what I use, allows inflation, deflation, digital read out, easy push to connect and almost no loss pressure at disconnect. https://www.amazon.com/gp/product/B07C25C4CQ/ref=ppx_yo_dt_b_asin_title_o05_s00?ie=UTF8&psc=1


Al in Kazoo

I notice that most digital gauges mounted as part of an inflator have ranges of 0-200 psi or so. Are digital gauges more linear across their range than analog dial gauges?