Checking tire pressure - Victory Forums - Victory Motorcycle Forum
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post #1 of 26 (permalink) Old 08-27-2015, 07:57 AM Thread Starter
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Default Checking tire pressure

In many forum threads regarding tires there is always the suggestion from a few people to check tires every week and keep the pressure up where it should be. In my own experience I check tires about once a month (if I remember) and maybe once a year have to add a pound or two. This bike, last bike, multiple sets of tires, that's it. So infrequent it's rare that I even think about them. I will mention that all my tires, forever, have been bias ply.

For those of you who find you have check and adjust more regularly, what do you think is causing that? I can only think of sidewall leakage but I would imagine you'd have to be driving with the aggression of a GP racer to disrupt sidewall seal. Are radial tires that much worse in construction that they can't seal to the wheel? If that were the case I'm sure we would hear of more accidents due to separation and instant deflation. Hard cornering certainly must put enough forces on the bead to do that.

Routine maintenance is a good practice to follow but I'm wondering how many of you actually have to add to the tires on a regular basis and why you think that is. Alternatively, are we just promoting an old habit from tires of a lesser technology?

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post #2 of 26 (permalink) Old 08-27-2015, 08:02 AM
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Seems I recall that new tires seem to lose a little air more frequently that tires that have been mounted and run for some time but can't say for sure. And fwiw I run only radials.

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post #3 of 26 (permalink) Old 08-27-2015, 08:25 AM
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Temperature affects tire pressure more than you think. If I have the tires aired up in winter and don't ride for a while, when a 70 degree day comes along I have to let some air out. Same thing in the fall when you have the pressure right on an 85 degree day and don't ride for a while, then get the bike out on a 48 degree day... tires are low by several psi.

Cast aluminum wheels will sometimes be porous enough to lose some pressure over time.

It only takes a few seconds to check/adjust the tire pressure. Why not do it?

Once a week when I'm riding a lot the bike goes on a jack. Inspect the tires & check the pressure, put an eyeball on the brake pads, check the belt, clean the wheels/brake rotors/calipers/rear pulley. Put it on the ground and check the oil, give it a wipe down with instant detailer, and check operation of all the lights/horn. Doesn't take long.

Once a month put a pair of vice grips on the clutch actuator arm and pop the cable out, then pop the lever off on the bars... clean and re-grease both ends. Then clean out the shift linkage pivots and spray some good foaming chain lube in those pivots... and don't forget the kickstand pivot. Every now and then open up the throttle housing on the bars and lube inside there.

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post #4 of 26 (permalink) Old 08-27-2015, 08:50 AM
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My Vegas has spoked wheels so inner tubes thus it will drop tire pressure over time.
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post #5 of 26 (permalink) Old 08-27-2015, 08:58 AM
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i rode mine daily so no i didnt check every time i rode, probably every couple weeks. temps will change psi, every 10 degrees of temp difference will add/subtract 1 psi. if your garage is 50degrees, you set psi to 40, roll it outside and its 80, psi will go up approx 3 psi.

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post #6 of 26 (permalink) Old 08-27-2015, 09:10 AM
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I use a Doran TPMS on my XC. I'm able to check pressure at any moment before I start it or while I'm riding. And often will do so multiple times a day.

I too have gone weeks or months without having to adjust pressure. But I always know what my pressure is before I ride. If you don't KNOW, and you're not checking, you might be asking for eventual (and avoidable) trouble. Don't you think?

Haven't we all had that split second in a corner where we wonder if that was the tire slipping on debris or if that squishy feeling was because a tire is low? I've found that having a TPMS is invaluable, really. I can't imagine riding ever again without that instant knowledge about something so crucial.

But...you know...I also ride on a car tire. Haha...so I wouldn't probably listen to me either.
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post #7 of 26 (permalink) Old 08-27-2015, 09:54 AM
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air molecules are smaller than rubber molecules so some gets out slowly
believe it or not

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post #8 of 26 (permalink) Old 08-27-2015, 11:33 AM
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so what kind of gauge are you using. Most are junk
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File Type: jpg 0-60 swivel chuck Tire Pressure Gauge.jpg (35.0 KB, 120 views)
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post #9 of 26 (permalink) Old 08-27-2015, 11:39 AM
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Quote:
Originally Posted by visionjohnny View Post
so what kind of gauge are you using. Most are junk
https://store.snapon.com/Inflators-T...--P771993.aspx


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RPW Thor Pipe, Lloydz ECU Flash, PC-III, PTS (-2), Rivera
Primo Clutch Spring, 31 Tooth Pulley w/Buell Belt.
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post #10 of 26 (permalink) Old 08-27-2015, 11:43 AM
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Quote:
Originally Posted by half_crazy View Post
Temperature affects tire pressure more than you think.
This.

We get such bipolar weather in Albuquerque sometimes that it's not terribly uncommon to have to keep putting air in the tires
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