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Old 11-29-2009, 12:11 PM   #1
maxgs
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Bridgestone track temp / tire compound recommendations

Folks,
I thought a few people might be interested in this chart. It shows the temperature range for the Bridgestone tire compounds. While I suspect it changes year to year as new compounds come out, this at least gives us an idea of what to expect.

SuperSport Tire Compounds
Compound Type...Front Tire Track Temp...Rear Tire Track Temp.
Type 4 Soft........50 - 122 Degrees F.......50 - 73 Degrees F
Type 3 Medium....68 - 140 Degrees F.......68 - 122 Degrees F
Type 2 Hard........No Data Available.........113 - 140 Degrees F

from http://www.barebones.net/tires.htm

Last edited by maxgs; 11-29-2009 at 12:13 PM.
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Old 11-29-2009, 12:14 PM   #2
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Good info, i guess i maybe should have been running a medium front instead of a soft this fall.
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Old 11-29-2009, 12:36 PM   #3
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Another couple of things to tale into account are the track surface and how fast you are.
It's one of the benefits of developing a relationship with your local trackside tire vendor as what works at say Willow doesn't work at Cresson.

Even though I have a lot of tire experience I defer to John with SCRC when it comes time to choose compounds and air pressures for our race bike.
By dealing with as many riders as he does he has a huge database of experience to go by.

He hasn't set us wrong yet.
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Last edited by Patrick; 11-29-2009 at 12:38 PM.
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Old 11-29-2009, 12:41 PM   #4
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Of course Patrick. This is just a rough estimate. Hard compound tires and 65 degree weather could be a little slippery.
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Old 11-29-2009, 12:48 PM   #5
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Last edited by maxgs; 11-29-2009 at 12:51 PM.
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Old 11-29-2009, 04:14 PM   #6
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Quote:
Originally Posted by maxgs View Post
Of course Patrick. This is just a rough estimate. Hard compound tires and 65 degree weather could be a little slippery.
I agree, but remember 65 deg F ambient air temp does not equal 65 deg track temp. All of these charts are referencing track temps.

I walked out and shot my temp gun on the hot pit surface and was getting readings of 72-76 deg before the clouds came in, and the surface was still holding 69-70 deg F after the cloud cover. Also certain tracks work better with different compounds. Just FYI on the BT003 Pro fronts, the soft is a different shape than the medium & hard. Sometimes you will need to run just outside of the suggested temp range to utilize the shape of the tire you need.

I can tell you from experience, these charts are put together for very basic guidelines. I wouldn't put too much into them.
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Old 11-29-2009, 06:05 PM   #7
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The guru has spoken.

Good thread.
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Old 11-30-2009, 12:43 PM   #8
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patrick and john are absolutely right

the charts are fine.
but nothing beats referring to your tire guy on the day of the race or track ride.
they are usually familiar with your style of riding, your needs on that specific day, your bike, your suspension guy, humidity that day, temperature, and other things that allow them to put things in a better context than charts.
john is very, very good at doing this.
he's the real world chart we depend on at the racetrack.
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Old 11-30-2009, 01:12 PM   #9
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