Wested

Beast

12strings

Wow, are these clinchers? I run 25mm tires at 80-90 psi, and I weigh 160 lbs...

Nachoman

I weigh 150 pounds and ride a few different bikes with 23c, 25c, 28c tyres.
I float them all to about 100 psi.

Doge

All over the map depending on tire and road.
Also depends on tire type and material. So silks get less pressure than cotton.
Me: 220# run a 24mm (says 25 but is a 24) and run 120/110
Tandem: 350# ran 140 on 23s and went to tubular and ran 160 ea
Son: 140# - totally depends on road and tires. Training around 100 on 23mm, racing smooth 110 on 25mm or TT 130 on 22mm, racing rough 100 on 25mm, racing cobbles 70 on 27mm.

SpeshulEd 

I don't think so. Pounds per square inch are the same no matter the size of the tire. It might take more air to reach a certain psi, but you wouldn't want a higher psi with a larger tire.

You want your tire to be supple and to hug the road when you corner.

I honestly can't believe the tire doesn't blow off the rim... or the fact that your wheels don't slide out when cornering at a high speed.

Corbin

Yes, Clinchers. I hate having any give in my tires. Cars as well. I hate that sloppy feeling there.

120 rear, 117 front. With my 25's I ran a bigger gap between but found the 28 (I'm using) to pancake pedaling out of the saddle.
I'm slow enough so need all the advantages I can get.
I've been running my current set up for 1,400 miles. I will be going back to 25's but perhaps not for long.I need to re-evaluate. The nice thing about this tires is I haven't flatted once. I typically would have had many by now. My saddle bag has become frivolous however I also have slid my back several times stopping quickly. I will try Schwalbe One next. They go to 28c.

bored117 

75-80 front 80-85 rear for my tubeless setup... Schwalbe Pro One 23mm with HED Plus... balloons up to about 28mm wide... 163 lbs rider weight...

goenrdoug

195 lb rider
25C on front @ ~95 PSI
23C on rear @ ~120 PSI

woodcraft

heh heh

ckindt

me - 220lb.
front - 25c/105psi
rear - 28c/105psi

beechnutC23

Me 195 lb
CF bike (17 lbs) 23c, 120 psi
Steel Marinoni (23 lbs) 25C, 100 psi

jamesdak 

Well, I'm stuck around 180 lbs this year. I use Conti GP 4000s on several of my bikes. 700 x 25 but with various width rims so size varies some. But I just run 80/90 F/R psi on all of them. The bikes are all steel and range from a low of around 18 lbs to a high of over 24 lbs. Over 3500 miles this year and one flat when I caught a large rock leaning hard into a fast corner. Roads are primarily really bad potted and cracked chipseal. I don't see much smooth pavement. I'll hammer one of the worse section routinely in the 20-23 mph range. I'm also working out another ride with the same tires but in 700 x 28. They measure 31mm on the rims I'm using. Ran them for 23 miles last night on these same rough roads at 73/84 with no problems.

Kamau

I usually run 80/90 F/R for 25mm Conti GP 4000s @ 180lbs too. Mostly riding paved trails with lots of cracks, gravel and bramble.
If I'm riding with a fast group on the road I'll bump it up to 105/110 F/R for a one off ride here and there.

Igualmente

To each their own, I guess. I'm 165 to 175 lbs and run 28's with 60 to 65 psi front and 85 to 90 rear (pretty heavy rear bias in my weight distribution because my seat is setback quite far and I sit on it most of the time). The front shows very little compression of tire (visually), the rear a bit more.

rmfnla

I weigh 190, run 28s, pump them up to 100 (indicated) so they are probably around 95 after popping off the chuck...

rumrunn6

thanks, the last tool on that page, at the bottom, seemed to come up with the # closest to what I'm using

mantis

I'm 163 lbs and I ride a Cervelo S2 with Conti 4000's, 130 rear, 120 front.

I like 'em tight.

ptempel

^ That's fairly high pressure. You'll be sorry when you hit metal or paint on a turn in the wet. I'm still a doughboy at ~220 lbs. But run my tires (with 23mm rims) at 90psi front and 100psi rear. Maybe a few more psi sometimes in the dry.

beermode

185 lbs.
Spec. Espoir Elites 25s @ 100-110 psi.
Anything less feels wishy washy. I also hate cranking off the seat on these tires, the front tire sounds like someone sweeping their driveway.
I got these tires because the LBS said they were pretty puncture resistant and should last a long time.

krusty

175lbs, 23mm tires, 120psi f&r, 21mm tubular tires on my track bikes, 180psi.

Sy Reene

Well, if the LBS said that, it must be true I run 95F/105R on 25mm Mich Pro4 Endurance; weight 185lbs.. fwiw.

beermode

Well...they are comfy. I ran over some car part or something that fell off of a construction or salvage truck and it kept going. I'm new to this road bike thing, so I have no indication of how good it was in that scenario. It could be that all the super duper low resistance tires could have weathered that hit just fine.

OldsCOOL

With 23mm clinchers, 115psi. With tubulars, 125psi. It's what I like. We have decent roads and my routes are reasonably smooth.

My weight is 165.

Chandne

Still playing around with pressures. I'm 175 lbs.

23 clinchers- 100/110
23 tubeless- 90/95
25 clinchers- 90/95
25 tubeless (near future) 85/90

I have to figure out my weight distribution, and not sure yet how to do that on the different bikes. I keep my bar just slightly lower than my seat so somewhat upright, though I have long arms. I'd guess I'm at 60R/40F or 65R/35F. That's why I keep the rear a bit higher. My roads are mostly very smooth and I rarely see potholes or expansion joints.

jamesdak 

Well today I was 38 miles into my 50 mile ride when I realized I forgot to air up my tires. They are Conti Classics 700 x 25C they I normally set at 80/90 before each ride. Oh, and I have latex tubes in these and haven't used this bike since last Sunday. So I knew that had to be low. Decided against stopping to air them up, just figured I'd see what happened. Got home and checked the pressures 57/60 psi!! Can't believe I didn't pinch flat somewhere along the way. I'm right at 180 lbs and this bike is between 23 and 24 lbs.