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Cold tire pressure question

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Old May 26, 2013 | 10:39 AM
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Default Cold tire pressure question

Recently had a new tire put on the rear. I noticed a very slight bounce in the ride yesterday, so this morning I checked pressure front and rear. Front was at 35, rear was at 36. Seems low to me....I was running 40/40 on my Heritage.
What is the best on a Ultra Classic? Still 40/40? I think this is where my little bounce is coming from.
Thanks!
 
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Old May 26, 2013 | 10:42 AM
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depends on year and model...let the owners manual be your guide

on my 09 I run 38/40 cold...which for us is 80º+

We have a great variety in elevation in AZ, when I run up to Flagstaff, I will often top up the tires again.

I should switch to nitrogen...larger molecules won't migrate out as easily and less subject to expansion/contraction

mike
 
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Old May 26, 2013 | 10:43 AM
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I myself run mine a few pounds(2)lower by myself,If I ride Two up than I run max pressure heavier weight?
 
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Old May 26, 2013 | 10:43 AM
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Thanks, its a 2006 Ultra Classic
 
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Old May 26, 2013 | 11:21 AM
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Ok, just talked to me dealer.......yeah, he answers messages on Sunday, lol. He said they ran 40/40 in the Ultras
 
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Old May 26, 2013 | 01:23 PM
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Originally Posted by Chief101
Ok, just talked to me dealer.......yeah, he answers messages on Sunday, lol. He said they ran 40/40 in the Ultras
36/40 according to the manual for my 09 SG....
 
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Old May 26, 2013 | 03:25 PM
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Originally Posted by Chief101
Recently had a new tire put on the rear. I noticed a very slight bounce in the ride yesterday, so this morning I checked pressure front and rear. Front was at 35, rear was at 36. Seems low to me....I was running 40/40 on my Heritage.
What is the best on a Ultra Classic? Still 40/40? I think this is where my little bounce is coming from.
Thanks!
The spec for your bike is 36/36 cold for stock tires, so you're right where you should be. I personally run mine at 40/40 cold since I find that it makes the tires last a bit longer. The "bounce" you feel may be imbalance if it is occurring only at highway speeds. If not and you feel it at slower speeds you may have an out-of-round tire, but that's doubtful, or the tire could be installed improperly. I would take it back to the installer and complain.
 
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Old May 26, 2013 | 04:38 PM
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It also depends on what brand tyres you have now. If you changed to another brand, the correct pressures may be different. In any event I learned long ago that adding a couple of psi seems to improve ride and handling, also reduce front tyre wear from braking.
 
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Old May 26, 2013 | 04:48 PM
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IF you are not running stock tires """DON'T" JUST GO BUY WHAT THE "MANUAL " SAYS!

Different Tires/DIFFRENT BRANDS often run different max pressure .
Look at the sidewall and run it at the max pressure listed .
Your tires will last longer and your bike will handle better = SAFER !

My personal opinion is I run one or two pounds over listed max pressure for longer life .

RESULTS MY VARY !

Oh ya , spend a few extra buck$ for a quality air gage .
Throw the $1.99 one away.
Check your presure frequently .

PLEASE NO WINING FROM THE PRINCES AND THE PEA GUYS ABOUT FEELING EVERY CRACK IN THE ROAD WITH PROPERLY INFLATED TIRES
 

Last edited by baust55; May 26, 2013 at 04:52 PM.
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Old May 26, 2013 | 04:53 PM
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Originally Posted by baust55
My personal opinion is I run one or two pounds over listed max pressure for longer life .
I do the same and it helps with the cupping issue.
 
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