Personal psi / tyre pressure choices

I've recently lopped minutes off my commute from Lower Sydenham to Blackfriars. I realise that its definitely the tyre pressure. I now run 125psi on the rear, and 120psi on the front. Rear tyre is the normally Specialized All Condition at 125psi, but I take 5psi off if on the front. I mix and match with the Continental GP 4000, again at 125psi on the back, and 120psi if on the front.

This is beneficial to me as I'm a heavy guy, and 90psi, for example, means I'm actually riding on the rim. What are your tyre pressure choices?

100,000,000,000 stone per square furlong

Veloflex Pave rear (22mm) - 130psi
Veloxflex Master front (20mm) - 130psi

I run latex inners, so need to top up the pressure almost daily. This means I've had the chance to compare lots of different pressures. 130psi at the back is good for my 80kgs. I have'nt noticed much difference on the front but inflating to high pressure means if I dont have time to top up one day, there's more chance of there being decent pressure left.

PS. This tyre set-up + stiffish wheelset + steel frame = one massive smilie face

"What are your tyre pressure choices?"

Weight, condition, tyre-choice dependent innit.

190 front and back.

Weight, condition, tyre-choice dependent innit.

True.

All of these are pretty constant for the fixed bike as its not a commuter. So I ride mostly in dry conditions. The commuter is in used on and off road, as well as for load carrying/trailer pulling, so the pressures vary quite a lot (use semis slicks, low pressure brings side knobs into play) with regards to conditions and planned load.

Conversly
Planning on running my Weirwolf 2.55 29er tyres at under 30 PSI. This should give me half an acre of traction surface per tyre (if my calculations are correct)

..

Pump them up so hard it feels like I'm riding on eggs.

For my fixed on the street 120 psi in the rear 100psi in the front for everything, on bmx's/street bikes I used to run about 120psi in the front and like 160psi in the rear roughly
I weigh around 101kg.

I pump em up to 120 on the rear and 100 on the front, then I dont top them up for months so they drop lower. The streets are so rough so I find most of the time supper hard tyres make riding slower.

For a second I thought this was going to be a list! ;)

i'm not saying, it's too personal

http://www.youtube.com/watch?v=x61H5Ld5CvA

Sadie.. the cleaning lady.. your the voice try and understand it..

http://www.youtube.com/watch?v=Lkcqw5YOXfc

Don't forget about rims.

for example, the mavic open pro listed this as their max pressure;

19c tyres - 146psi.
28c tyres - 117psi.

therefore Gatorskin and 4 season 25c at 110psi, althought I personally find it idea for the rear tyres to be pump up a bit more says to 120psi as it carry most of the weight.

I have my rear (Randonneur) at 110psi and my front (Gatorskin) at 125psi. Perfect.

The reason the rear is so low is that Randonneurs are supposed to be run at 85psi or something.

gatorskins 23 — 100psi front / 110psi rear
super marathon 35 — 55psi front / 60psi rear

i read the title as 'pepsi tyre pressure choices' and felt thirsty.

Front, 100 psi
Rear, 110 psi,
standardly...
both 23mm
and I'm pretty heavy too...

28mm Conti Sportscontact - rated to 102 psi, inflated to 110.

From all the loud bangs from exploding tubs at the last track day I went too - 'far too high' would cover about half the forum ;-)

170 psi Conti' GP supersonics on my road bike.

200 psi Vittoria Corsa Evo CX 320TPI (Tubs) on racing bike.

220 psi Tufo elite 110's on TT bike (Zipp Sub-9 Disk and 1080 front)

I find you get alot less punctures if you keep the pressure on the high side.

for polo around 90psi, front and rear 28c-32c

120psi front and back tho i'm a bit lazy bout topping up, usually once every week or so. really must buy a track pump soon.