Whats the Perfect tire pressure for PR2`s

[RenoJohn]

The 10% doesn't mean squat. You always check pressures cold.

Uhhh, well maybe. But many of us will take hot pressure for a number of reasons.
Let's say that your own experience and the tire manufacture has you believing that 10% is indeed the hot cold ratio that you want to have

...and you find that you're actually coming up more (let's say 15%) if this is the case, you may very well be running too low of a cold pressure.

...and if you find that you're actually coming up less (let's say 7%), you may very well be running too high of a cold pressure.

People racing will pay very close attention to the tires hot temperature, mainly to help them gauge what the cold temperature should be.

Now, there are a bizzillion things that can play into this puzzle, including road surface, weight, ambient temperature, speed, and of course tire type ...so a lot to take into account. Oh and don't forget dusk.

 

[doug5551]

39.534587 PSI front41.874568 PSI rear

this is at 65F ambient temperature at 4,258feet elevation.

Of course I never use this pressure at dusk, that goes without saying.

Gosh, your post is interesting.

I never thought about it quite like that before.

 

[canyonman]

39.534587 PSI front41.874568 PSI rear

this is at 65F ambient temperature at 4,258feet elevation.

Of course I never use this pressure at dusk, that goes without saying.

And thats using pure nitrogen, correct? along with a little amsoil

 

[RenoJohn]

Gosh, you post is interesting.
I never though about it quite like that before.

And thats using pure nitrogen, correct? along with a little amsoil

My oversight, thanks for the clarification.

 

[Rolavine]

I run 40-42 psi, but have my suspension set soft, with slighlty above mid preload (I'm a 250 pound earth papa, built low to the ground for enhanced grazing)and everything else close to the middle.

I run hiway and backroads, but the backroads I run are falling apart and tighter suspension settings makes the bike fly over the pavement colored mini jumps. Hard also reduces the Lincoln like ride on the slabs and that tends to introduce an unintended vibrato to my incessent crooning of old Beatles songs. I just don't see much point to the hard setting but then again I'm trying to be a survivor and experience has made me more than perceptually allergic to road rash.

All we are saying, is give soft a chance!

 

[Pierre]

42/42 psi, regardless of tire brand.

+1 here

 

[dcarver]

You guyz are waay to picky.

Anything greater than 10 psi is just fine because.

.

.

.

.

A second-class ride beats a first-class walk anytime! :****: :rofl:

[SIZE=8pt]and 10 psi is all thats needed to keep that sucka on the rim[/SIZE]

 

[HYCLE]

At WFO, I was told my tire looked flat as I pulled out of the parking space. When I got to Elk River, for huckleberry pie, I checked the pressure and it was 46psi.

Maybe if I eat less pie, it won't look flat. :blink:

Now I am back in California and might check it cold tomorrow, if I remember.

 

[TriggerT]

42/42, and I will be changing the tires tomorrow with 12K miles on them. Not even to the wear bars on the rear yet, but the front is getting a little funky, and I am leaving for a longer ride. If it weren't for going for a longer trip, I would push it and I bet I could get at least 13 to 14K miles out of the set.

 

[Roadstar]

Well i`m going to try 40f-42r & see what happens as tire gets hot (now if it would stop raining on my days off) I took the bike with the new tires too work & as Tiny Tim said (tip toe thru the tulips) I felt like a nubee just learning how to ride with the new greasy looking PR2`s & change my suspension setting (i`m no Nicky Hayden , more like a back packer)

 

[Warchild]

(i`m no Nicky Hayden , more like a back packer)

Um.... pretty sure you meant to say "back-marker".

The phrase "back packer" can have an entirely different meaning. :huh:

 

[wheatonFJR]

<cough>***********<cough>

 

[TriggerT]

And Wheaton would know.

 

[Roadstar]

(i`m no Nicky Hayden , more like a back packer)

Um.... pretty sure you meant to say "back-marker".

The phrase "back packer" can have an entirely different meaning. :huh:

After you pointed it out :yahoo: I was thinking of my car road racing days. (oh well )

 

[Two Brothers]

Keep them around that 40psi mark for better wear and grip.

 

[bikerkash]

Tire pressure effects traction and heat. MC tires are designed to operate at certain temps to provide the best traction. There are a number of things that have an effect on finding the tire pressure that works best for you. If you do not have a way of checking the tire temp, which I have added to my bike, then one of the best ways I have found to test this is to set your tire pressure cold then go ride the bike with the weight you would normally have on the bike and run the roads you would normally run and at the pace to usually ride at for say 30 minutes then check your pressure. I have found the rear tire pressure needs to raise around 20% and the front around 10%. If the percentage is higher add pressure if it is lower take pressure out until you achieve close to these numbers. I personally do not care that much about max mileage as max traction, while not over heating the tire, is more important to me. Traction on a motorcycle is a key issue for safety. Fully geared I'm no more than 175 plus some light gear in my bags. I run county roads and look for the most curves and do not ride slow. I find 36 front and 38 rear works well and have gotten as much as 9k on a rear tire which were the Metzeler Z6.

 

[Roadstar]

Tire pressure effects traction and heat. MC tires are designed to operate at certain temps to provide the best traction. There are a number of things that have an effect on finding the tire pressure that works best for you. If you do not have a way of checking the tire temp, which I have added to my bike, then one of the best ways I have found to test this is to set your tire pressure cold then go ride the bike with the weight you would normally have on the bike and run the roads you would normally run and at the pace to usually ride at for say 30 minutes then check your pressure. I have found the rear tire pressure needs to raise around 20% and the front around 10%. If the percentage is higher add pressure if it is lower take pressure out until you achieve close to these numbers. I personally do not care that much about max mileage as max traction, while not over heating the tire, is more important to me. Traction on a motorcycle is a key issue for safety. Fully geared I'm no more than 175 plus some light gear in my bags. I run county roads and look for the most curves and do not ride slow. I find 36 front and 38 rear works well and have gotten as much as 9k on a rear tire which were the Metzeler Z6.

Thanks for the reply (everyone) The biggest trouble is, i try not to run the same roads & just keep riding until i`m ready to go back home , then i just press home on the GPS to find my way back. (I sure do try to get lost alot) Not a native of PA it sure isn`t hard to do.