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Old 01-18-2013, 01:38 PM   #1
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Tire Temperature

img battlax s20 03

This is why you don't want your tires to get too hot. The lower the PSI, the higher the temperature.

http://www.bridgestone.com/products/...ttlax/s20.html
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Old 01-18-2013, 01:46 PM   #2
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The hotter the tire, the more the "oils" in the rubber seep out and make the tire slippery. That's what me thinks.
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Old 01-18-2013, 01:46 PM   #3
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Good find, great info, Im not a Bridgestone guy, but this tire is the next best thing I would use.
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Old 01-18-2013, 02:16 PM   #4
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I think the graph is kinda ....it should have any area at the bottom where it says "operating" temp or "optimal" temp

"low" temp tires provide low traction too
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Old 01-18-2013, 02:25 PM   #5
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Yup... what is "high" and what is "low"
Are we talking 30deg to 100 deg or 80deg to 180deg.?
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Old 01-18-2013, 03:21 PM   #6
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Quote:
Originally Posted by BYRDMAN View Post
I think the graph is kinda ....it should have any area at the bottom where it says "operating" temp or "optimal" temp

"low" temp tires provide low traction too
I agree, they should make the point really that you want the tires warm and sticky, not hot and oily.
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Old 01-18-2013, 05:16 PM   #7
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Yea, like any of you guys are going to take your tire temps. It's just a graphic comparing tires and showing that they lose grip with heat.

No , you want your tires warm, but not overheated which can happen in the summer with knuckleheads running 25 PSI in a tire that's supposed to have 36 PSI cold.
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Old 01-18-2013, 11:08 PM   #8
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Quote:
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Yea, like any of you guys are going to take your tire temps. It's just a graphic comparing tires and showing that they lose grip with heat.

No , you want your tires warm, but not overheated which can happen in the summer with knuckleheads running 25 PSI in a tire that's supposed to have 36 PSI cold.
lol i hate to be "that guy" but uh....i actually do(or have in the past)
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Old 01-18-2013, 11:29 PM   #9
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Quote:
Originally Posted by brian1570 View Post
lol i hate to be "that guy" but uh....i actually do(or have in the past)
Can I haz your temperature gauge?
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Old 01-18-2013, 11:43 PM   #10
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Can I haz your temperature gauge?
you mean my temp gun? you got duh cash homie?
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Old 01-18-2013, 11:46 PM   #11
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Quote:
Originally Posted by brian1570 View Post
you mean my temp gun? you got duh cash homie?
Where can you get info on acceptable street tire temperatures?
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Old 01-19-2013, 12:03 AM   #12
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Quote:
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Where can you get info on acceptable street tire temperatures?
Patrick, John, Whoop, etc.



Street tires are made to operate ideally at a certain temperature range. Let's say 160-190.

Street/Track tires are made to operate ideally at a slightly higher temp range. Say 180-210.

Track tires, like race DOTs and Slicks are made to operate ideally at much higher temperatures, because that's what they're run at, 200-240.

Don't quote me EXACTLY at those numbers, but I know it's something like that.

With heat, tire pressures go up, as most people know. Also, when you go to buy tires, the smart salesman will ask what type of riding do you primarily do? If track time, what level? If specific levels, what times? What are your riding/braking styles?

All this has been discussed so many times on this board, and every other one. I'm surprised YOU, Bevo of all people, would start yet another thread for this. There's even been a discussion about the "oils in tires" coming up to surface making tires seem slippery.
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Old 01-19-2013, 12:08 AM   #13
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Next time some of you "back road heroes" hit up RR, Forrest, or Reverse Forrest, take a temp gun and pull over at the end to check your tire temp. Then go to the local CMRA races, and catch someone like Ty Howard, Brandt Dillon (CDill), or any of the top endurance teams, to check their tire temps. You'll see a significant difference!
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Old 01-19-2013, 12:09 AM   #14
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Not trying to offend anybody, by the way!!
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Old 01-19-2013, 12:53 AM   #15
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From cold tires on overpass interchanges to this.

Actually kind of interested on this one though but would want to know more specific temps i have access to a temp gun. Not saying i would probably ever get to the point where they are too hot.
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Old 01-19-2013, 01:46 AM   #16
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and would you believe ive been riding since the beginning without taking my tire temps
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Old 01-19-2013, 01:53 AM   #17
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Neither have I ....
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Old 01-19-2013, 02:28 AM   #18
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These go on sale every now and then for $10 or $15 at harborfreight.

http://www.harborfreight.com/catalog...infrared+therm

I never got my tires that hot, but it's neat to play with. I'd check left side vs right side, brake disks, track temp, header pipes as bike warming up. I'd check the rims too, notice how warm they'd get. I remember thinking about making some rim warmers.

Pulling out my notebook, some numbers I had from MSRH. These would be taken just after getting back in, when I check my hot tire pressure.

Front 120F (34 psi Hot/30 cold)
Rear 140F (34 hot/28 cold)

later session
F 125 Left / 130 R
R 140 L / 150 R
front brake discs 130F

wife on stopwatch said 1:59.5 - 2:01 laps... novice/interm kind of stuff.

The tires that come off the fast guys bikes are bluish from the heat, mine of course would still look fine with these numbers. Their warmers prob heatup hotter than I was running at.
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Old 01-19-2013, 03:02 AM   #19
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Cool someone took that info in!

Be good to see current comparisons to guys running :40s and lower!
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Old 01-19-2013, 11:41 AM   #20
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If you ride street and worry about tire temp, youre holding your sphincter too tight.

Does it make a difference? Yes. Enough to offset all other factors that affect traction to a point of making a significant difference for street riding? Well... if your answer is yes, then you probably should consider taking that sort of riding to the track instead.

BTW, there are no "OILS" that seeps out from the rubber. Tires get "greasy" because the crosslinked rubber molecules start to loosen up. "Greasy" is just a figure of speech.
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