What pressure do you run in your tyres and why?

Jungli

What tyre pressure do you run and why?

I use Ultremo tyres and generally run them at about 120 psi although they are rated to 145.

Is it according to weight, wet or dry etc, or just personal feel and habit?

Thanks muchly!

System_1

I'm on 140-150 on the back and 125-130 on the front. My Vredesteins feel a little softer than others at a similar pressure so respond to a bit more air, and I've always preferred a more solid feel anyway.

And I'm a fat b***ard too.

redddraggon

My 23s I run at (front/rear) 105/120

My 25s I run at 95/110

tomashford

I have Ultremo tyres and run them at 120 psi aswell. Only because is says 85 - 145 psi and 120 is close to inbetween.

Diesel_engine

There are some high pressures in this thread!

I run 23s at 110psi and 25s at 90-95psi and weigh around 13st.

You may be interested in http://www.sheldonbrown.com/tires.html#pressure

andrewgturnbull

HI there.

Just pumped my tubs up to 135psi for tonight's ciub 10. The clinchers on the road bike will be more like 100-110psi.

Cheers, Andy

blorg

I generally run between 100 and 110 (23s) although I have to get a pump with a decent gauge to be sure of that ;-)

Read this today - The Case for Lower Tire Pressure.

Ken Night

Ultremos at 100/110, I'll try harder

Red Rock

I run 23s at about 105 (front) and 110 (back).

1892

23s @ 120psi

willbevan

clinchers - 110 (i;'ve had to many pinch punctures)

Tubs - 130

willbevan

clinchers - 110 (i;'ve had to many pinch punctures)

Tubs - 130

Cheshley

I'm on 28's at 100-110psi and I'm over 17 stone.!!!!!!!!!!

Should I be pumping them up a bit more.....?

Mettan

In the dry - 120-125

In the wet - lower 100 - 105

Back generally a bit harder than the front.

biondino

I pumped both my tyres (rear: Specialized Armadillo 25mm; front: Vittoria Open Corsa Evo KX 23mm) to 100psi today and it's the first time they've ever been so inflated. My god, my bike is one harsh ride all of a sudden! I was previously inflating them to 60psi and did absolutely fine, though about 80psi seems a decent compromise.

Having said that, I did notice I went noticeably faster today, so when I want to choose speed over comfort I know what to do. Also, from tomorrow (fingers crossed) I'll have my new Focus with Schwalbe Ultremos, so I'll be experimenting all over again.

blorg

Different size tyres require different inflation and 100 might be just a bit high for 25s. The one 25 I have (a Continental Gatorskin) suggests 95 as the recommended inflation value (although I think it says it will go to 120 max.) It has the recommended values on the label attached when you buy the tyre, think it just has min and max on the tyre itself.

You are right that it makes a big difference to both speed and comfort, although there are arguments about how much more speed you get going over 100-110 or so. Overinflation will bring you a harsher ride and decreased grip/cornering without any significant benefits in rolling resistance. 60 is much much too low for 23s though, my Ultremos are marked with 85 as a _minimum_ and not many would run them anywhere near that low.

biondino

Yeah, it sound ridiculous, but I promise you that it was very rideable! My 25 can go up to 115 and my 23 up to 120, from memory.

Lagavulin

Currently running Vred. Fortezza Tricomps at 120/125 (though I have a Mondo Pro on the front at the minute) I did put a bit more air in when I first moved to these tyres, as previously pointed out by another poster, they seemed rather supple compared to the Mondos/Mondo Pros and GP4000s at the 120/125 range.

Finally taking delivery of my new bike on Saturday. It's much more of a race bike than my current stead , and, while it comes with Vittorias, I've got a feeling 120psi Tricomps may just be the ticket or may try out 25c GP4000's for a bit of comfort.

il_principe

GP4000S/23 120 psi front and rear

redddraggon

Lagavulin wrote:

Finally taking delivery of my new bike on Saturday. It's much more of a race bike than my current stead , and, while it comes with Vittorias, I've got a feeling 120psi Tricomps may just be the ticket or may try out 25c GP4000's for a bit of comfort.

If they are Fulcrum Wheels I'd recommend sticking with the Vittorias, most other brand tyres are a b!tch to get on and off Campag/Fulcrum Rims.

markos1963

Lithiums 23mm 110fr-115r for training
Kyrilions 25mm 100fr-110r for commuting

DavidBelcher

Vittoria Rubino Pro 23mm, usually 110-120psi but about 15-10psi higher if riding an evening TT.

David

Lagavulin

redddraggon wrote:

If they are Fulcrum Wheels I'd recommend sticking with the Vittorias, most other brand tyres are a b!tch to get on and off Campag/Fulcrum Rims.

Yep, they're Racing 3's. Cheers for the tip Red. Will leave the Vittorias on the R3's then and run my other tyre makes on the DT Swiss'.

il_principe

Lagavulin wrote:

redddraggon wrote:

If they are Fulcrum Wheels I'd recommend sticking with the Vittorias, most other brand tyres are a b!tch to get on and off Campag/Fulcrum Rims.

Yep, they're Racing 3's. Cheers for the tip Red. Will leave the Vittorias on the R3's then and run my other tyre makes on the DT Swiss'.

GP4000S are a doddle to fit onto Fulcrums, the GP4000's are a nightmare.

Lagavulin

jashburnham wrote:

GP4000S are a doddle to fit onto Fulcrums, the GP4000's are a nightmare.

Oh well, I've a couple of sets of 4000's and set of the Chili 4000S.

While the Soma steel-cored tyre levers have always coped relatively easily with the tyre and rim combinations I've tried to date, I'm rather apprehensive of my first puncture on the Fulcrums.

campagsarge

Yup, Conti's do not like Campag rims. I have the scars to prove it!

blorg

I don't have any experience with the Fulcrum tight rim thing but I tried a Crank Brothers Speed Lever for the first time this week and was very impressed with it's tyre mounting abilities.

JimmyK

25`s on front and rear , both inflated to 120 psi.

JimmyK

redddraggon

JimmyK wrote:

25`s on front and rear , both inflated to 120 psi.

JimmyK

Now that is pretty high for 25s - maybe 120 for the rear if the roads are really poor and if you are pretty heavy, but you shouldn't need the front as high as 120psi.

biondino

So no-one else rides at 60 psi then :roll:

blorg

biondino wrote:

So no-one else rides at 60 psi then :roll:

I have 700x35s that I used for touring that would run around there, lower for the off-road sections.