Tire Pressure - Vittoria Open Pave 700x27

[MilanoTom]

I just installed a new pair of 700x27 Open Paves, which are rated as 100 - 130 PSI. Does anybody go lower than 100? In days past, I probably would have run 110, but nowadays, I wouldn't go over the minimum pressure. I'm coming to the realization that it's a waste to run a supple tire if it's rock hard.

For what it's worth, I weigh about 140 lbs. and the roads around here have some rough patches. Steel bike.

Thanks in advance,
Tom

[saab2000]

At your weight I’d go 70-75.

[MilanoTom]

Originally Posted by saab2000

At your weight I’d go 70-75.

Thanks. I'm from the days of high pressure (700x20 Contis at 10 psi over the rated max). I'm retraining myself, but it isn't always easy.

Tom

[chrisroph]

I've had some, nice tires, and I ran them at about 90.

[dbh]

I'd say 90 max given your weight. I'm 165 and run my 25cm Open Paves at about 90. For 27s, I'm usually around 75-80.

[kramnnim]

Couple pounds heavier than you and would run 60-70 rear, less up front.

[thwart]

Originally Posted by kramnnim

Couple pounds heavier than you and would run 60-70 rear, less up front.

This.

Just finished a ride on my De Rosa shod with 27 Pave tubulars, 60 psi front/70 psi rear. That is a very, very sweet tire... no need to scan the broken and pock-marked roads, just focus on your ride.

And sweat. 90 here today.

This summer my weight is running 145-150. Although probably lower right now...

[robt57]

I went thru 8 of these in a few seasons. 25mm and 27s.

My weight was 220-235lb and I ran the 25s 82/87 PSI and the 27s 75/80 PSI.

I never pinched. My only boggle was these wear super fast when you weight a lot. So much so it was a waste of money, almost.

I say Almost as with latex tubes and these pressures the ride was VVG. Sublime if we want to use that verbiage.

My last set of 25s green stripes is on my Look 585 and I am 200 lbs these days, they are wearing well comparatively to 230lb.

I don't bother with latex on the look 585, it mutes road vibration
better than most frames I've owned or ridden.

At your weight IMO you are way high. I choose the pressure noted above so the front does not squire in a dive in, just above that.

Low pressures for me have meant excellent ride and lower indecent of flatting. Not o mention a much lower incident of cutting the craep outta them.

[coelacant]

I've been using 60 psi front and rear, and got a good balance between cushyness and fast rolling on pretty bad roads around here in NorCal. 155# rider.
Going just 5# above that and the jarring, bouncing starts.

[MilanoTom]

Thanks all. I ran them at 80 today - comfy ride, but going to try 70 next time

[robt57]

Originally Posted by MilanoTom

Thanks all. I ran them at 80 today - comfy ride, but going to try 70 next time

See if this methodology works for you. Start @ 55 PSI front and raise 2-3 at a time until all signs of squirm are negated. Then pump the rear 5-7PSI higher.

Try to induce the squirm by getting a little too far over the front out of the saddle on the hoods, like an attack you stood a little to early on. Try a shallow arc turn in this attitude.

[HTupolev]

Originally Posted by MilanoTom

I just installed a new pair of 700x27 Open Paves, which are rated as 100 - 130 PSI. Does anybody go lower than 100?

I weigh 160lbs and I never go above ~85PSI in mine. Even that's inappropriately high if the road surfaces are rough.

The minimum pressure on Vittoria tires from that generation has nothing to do with anything. They basically brainstormed the highest load that they could imagine someone putting on a bicycle, and then stated the lowest pressure that would stay within ETRTO drop requirements at that load.

[bigreen505]

I've been using Zipp's tire pressure calculator:
https://axs.sram.com/tirepressureguide

[Dead Man]

65/70 on all (road) tires, all sizes, for me these days, at 145-150lbs, and with those same tires.. i feel like i cut em less, flat less, and its def a better ride. but "cut em less" is pretty subjective - cuz paves cut about as easily as any tire ive ever ridden on for any decent amount of time. i have moved on..