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Racing tire pressure?

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Old 12-08-09, 09:39 PM
  #1  
Wavey Davey
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Racing tire pressure?

I know it will very with the type of race, but, what do you racers run? I've heard some ride 90psi in the Tour and I can hear the taught rubber vibrating in some crits from guys with their tires pumped up to what sounds like 180. Since this forum's new search capability sucks, I had to start this thread, sorry.
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Old 12-08-09, 11:55 PM
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eskimo85
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111.5 - clinchers
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Old 12-09-09, 12:19 AM
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jdott
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It depends on conditions as well as your weight. You need the tire to conform to the road a bit for optimal performance, but too much causes excess rolling resistance.
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Old 12-09-09, 05:30 AM
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YMCA
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85-95 psi
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Old 12-09-09, 08:48 AM
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100-110 under normal conditions in a road race, 95-105 in normal conditions for a crit, less for nasty conditions in either.
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Old 12-09-09, 08:51 AM
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Geesus I run way too much pressure don't I
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Old 12-09-09, 09:22 AM
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depends.
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Old 12-09-09, 09:24 AM
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substructure
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Do you guys put air in your tire every ride, every race, every single time?

I don't. But that's me.
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Old 12-09-09, 09:31 AM
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Not every ride, but before every race, yes. Particularly since my vittoria tubs lose about 20psi over night.
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Old 12-09-09, 09:34 AM
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depends on how important the race is.



btw - is it me, or is this a very 41 in the 33 thread?
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Old 12-09-09, 10:35 AM
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substructure
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Speaking of race conditions; have you seen the Schwalbe Ultremo Aquas?
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Old 12-09-09, 12:14 PM
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DrWJODonnell
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130psi dry conditions. But I am fat.
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Old 12-09-09, 12:35 PM
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120 psi clinchers.
-10 if wet.
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Old 12-09-09, 12:37 PM
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To the point of determining psi based on one's body/bike weight, where is the source for that, do to the tire manufacturers have some kind of recommendation? I'm 160-165, I'll probably drop down to 100psi from my usual 110psi on the next few rides and see how it goes. I know a little higher typically reduces your vulnerability to snakebites. I also know 120 makes my hands go numb on the bumpy commute to work, especially in the cold and wet.
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Old 12-09-09, 12:40 PM
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I usually just thumb-squish before I get on. If it passes that test I roll down the driveway and if it feels good, off we go.

On the rare occasions I put a pump to it, the starting pressure is in the 80's for front and rear, then I'll put them up to 95-100 and forget about it for a couple weeks.

Repeat.
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Old 12-09-09, 12:49 PM
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I usually race at a buck forty. I weigh 155
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Old 12-09-09, 01:26 PM
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175 lbs rider, Clinchers: 110psi rear, 100psi front if I pump them up. Like Creaky, I'll let mine get down into the 80s before I mess with them. In rainy races I leave them around 80psi.
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Old 12-09-09, 01:34 PM
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What WR said.
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Old 12-09-09, 01:55 PM
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110psi on EVO CX tubulars. Less if it's raining or if there are a bunch of corners. 120 in time trials on good surfaces.
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Old 12-09-09, 06:13 PM
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About 100 psi for me at 67 kg, a little lower for wet races.
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Old 12-09-09, 06:31 PM
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Depends.

Race pressure=training pressure.

Change if it's wet or the course is VERY technical. The latter makes me feel better mentally (placebo) so whatever.
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Old 12-09-09, 06:35 PM
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Originally Posted by botto View Post
btw - is it me, or is this a very 41 in the 33 thread?
it's just you. it says racing right in the title.
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Old 12-09-09, 06:59 PM
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120 for road races, 120r, 110f for crits, 110 for training. For cross I get down into the 20's
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Old 12-09-09, 07:47 PM
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100-120, depending on what I think the chances are my POS pump will rip the valve out of the tube. I've got a 25c on the back now (it was kicking around and it's december) and I am fine with it down into the 80s.

disclaimer - I'm not fast and can't tell the diff between 105 and 120 when riding.
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Old 12-09-09, 08:46 PM
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90 to 120 depending on course, race, weather, etc.
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