richard.susanto

Fellow cyclist,

I just got a new Canyon Endurace road bike that comes with 30mm Schwalbe pro one tires. For any of you who has ridden with 30mm tyres for a while, what do you consider to be the best pressure for non-tubeless?

I filled it up with 75 psi on my maiden ride earlier today and it was very comfortable on rough tarmac. I'm 150 lbs or about 68 kg.

Thanks,
Richard

WhyFi

I've only ridden 30s tubeless, but that was 70psi when I was at ~210lbs. 75psi at 150lbs is significantly higher than you need to be.

cyclic_eric

Here's Frank Berto's chart, to use as a guide. It looks like around 60 psi is more appropriate.
The horizontal axis is weight per wheel - see the instructions at the bottom.

richard.susanto

Thanks for the input. I just converted the tyres to tubeless today. I will test riding it at 60 psi tomorrow.

Richard

datlas 

I expect you may want to tweak slightly based on road conditions. Also suggest 5-ish PSI lower on front.

LesterOfPuppets

I ride tubeless 30mm tires and don't go over 50psi in them, I weigh 162.

datlas 

Not to derail thread, but is there really any science behind the 15% for wheel drop? Why not 17% or 13%?

noodle soup

60R/55F is what I use with 30mm Schwalbe G-One Speed tires, and I weigh 188lbs.

WhyFi

He prolly doesn't have as massively wide rims.

richard.susanto

Wow...55-60ish PSI. That's a game changer for me, coming from my old Trek bike which has 23mm tires (110 psi).

Thanks, all. I will test this tomorrow.

Richard

noodle soup

he’s also not as fat as I’ve become.

WhyFi

This is true.

I mean, if you say so.

datlas 

If you still have your Trek, drop your PSI to 80F and 85R. Do it now and thank me later. Pumping up to “max” PSI is usually too much.

LesterOfPuppets

I reckon my ideal pressures are approx 43/45 F/R on road, 38/40 on gravel.

fried bake

I’m 210lbs and using those tires @ 50/45, R/F with no problem and supreme comfort on crappy Pittsburgh streets.

jimincalif

I have the same tires, tubeless p, on rims that are 28.5mm wide (external). I weight about 200#, I usually run about 60-63 front and 72-77 rear, depending on if I skip a day pumping them up or if I know I’m going to ride some rougher pavement. I’ve run them as low as 50/60, but they feel just a bit too squishy for me at the lower pressure. Definitely a personal preference thing.

Racing Dan

I was thinking the same thing. Under what circumstances does 15% apply? For instance, riding a velodrome, you would be way underinflated with the shown suggestions.

datlas 

Agree. It seems totally arbitrary. I think the "best" tire pressure really depends on many factors including the tire width, rider and bike weight, terrain, etc.

I understand that having a "uniform" rule makes it easy to calculate, and actually the 15% drop rule gives a reasonable result, but like anything else it's a starting point and can/should be tweaked. It certainly makes more sense than the newbie error of pumping up to the "max rated" PSI but I still don't think it's "scientific" or evidence based.