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What tire pressure do you use on hybrids?

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What tire pressure do you use on hybrids?

Old 12-27-14, 09:03 AM
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ps249
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What tire pressure do you use on hybrids?

I am asking about the thinner tires such as 700 x 28.......
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Old 12-27-14, 10:34 AM
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We run 80psi in our giant roam and rove.700x28 tires that is what the lbs suggested.
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Old 12-27-14, 04:56 PM
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I run 100 ib psi on both my wife's and my Escape RX Composite using Continental GP4Season 700x28s. However, the GPs seem to be narrower than the 28 would suggest. We have been getting around 7500 miles per rear and as yet to replace a front tire.
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Old 12-27-14, 05:25 PM
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Depends on the tire. I've got a set of 28mm Vittoria Randonneurs that take a max of 85psi,and a set of Spec All Conditions that take 115-125. Check what your tires take,and vary the pressure through the range until you get to a level where they handle and ride the way you like.
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Old 12-27-14, 08:06 PM
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Originally Posted by DowneasTTer View Post
I run 100 ib psi on both my wife's and my Escape RX Composite using Continental GP4Season 700x28s. However, the GPs seem to be narrower than the 28 would suggest. We have been getting around 7500 miles per rear and as yet to replace a front tire.
I been running mine also around 100 psi. Some people say 80 is more than enough.
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Old 12-28-14, 08:16 AM
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Much depends on YOUR weight.
On my 25mm tires, I run 100/110 F/R for general use. (IF 28mm, probably 5-10 lower)
IF I plan on doing a lot of miles that day, I'll add 10 PSI to that.

I weigh 240-250. If I weighed 100 lbs. less, I'd probably run 10-20 PSI lower?
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Old 12-28-14, 08:20 AM
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Wanderer
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I weight 210, and run my 28s at 110-115. I run my 35s and 40s at 92, for a similar feel .....
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Old 12-28-14, 11:02 AM
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I read the marking on the tire Casing.. its construction is what limits how hard you can inflate It..
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Old 01-02-15, 10:37 AM
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For my Trek 7.4FX I run both front and rear tires at 80 psi.

Best regards
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Old 01-02-15, 11:30 AM
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I inflate my hybrid 28's to the recommended maximum - 115 psi. I ride on pavement most of the time.
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Old 01-03-15, 06:01 AM
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As mentioned above, it's written on the tyre. In saying that, I usually go 10 psi over the max.
In my 32mm ... 90psi, in my 23mm...120psi
I am 65kgs.
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Old 01-03-15, 06:44 AM
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I'll inflate to the tire sidewall pressure UNLESS I've got a wide tire on a narrow rim. Then, I derate the sidewall pressure by a minimum of 10 psi and sometimes as much as 20.

Using sidewall pressure on tires wider than the rim is designed for can cause catastrophic rim failure (I speak from experience).
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Old 01-03-15, 08:51 AM
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35c Sammy Slick tires at 80-90psi depending on my mood
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Old 01-03-15, 08:56 AM
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On my 7.7fx i'm running conti grand prix 4000s II, 700 x 25mm @ 117psi. 160lb rider
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Old 01-03-15, 11:19 AM
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On my 23s I run 75-80pds and find it pretty comfortable and still high enough pressure to avoid pinch flats. I have no idea how anyone can like 90-120pds on 23s as I tried it and man that ride is harsh.
I weigh 135 pds so that 75-80 pds is just fine.
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Old 01-03-15, 11:41 AM
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While researching tire pressure, I came across this:
Optimal Tire Pressure for bicycles | Bike Tinker

I have no idea how credible the science is, but being a math guy myself I found it interesting. I'm curious to know whether anyone here uses this method or something similar.

Last edited by AU Tiger; 01-03-15 at 12:11 PM.
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Old 01-04-15, 03:40 PM
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Originally Posted by AU Tiger View Post
While researching tire pressure, I came across this:
Optimal Tire Pressure for bicycles | Bike Tinker
I inflate my 7.4FX according to those curves. With my weight it comes out to 75/80 psi in the front and 95/100 in the rear.
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