[Closed] Pressure in CX tyres

I use 80-90 psi on the Quantocks.

100psi in mine.

We're running 90psi on our Crux with 33mm Tracer tyres.

about this much (squeeze)

pump them up really hard so that your teeth rattle out, when you get bored of that let some air out by degrees until you start to pinch puncture, add some more, that's how much

I weigh about the same as you and run mine at 60psi for anythign off road.

They can be a bit 'pingy' on dry roots and stuff at higher pressures than that and bloomin' lethal in the wet.

Depends. Are you a lump on the bike or not. Doesn't matter what you put in them if you bang it around. However, if your light and nimble, you'll get away with running lower pressure. It's a bit of a compromise because if you do want to climb loose or technical stuff, you could drop it a little to get a bigger contact patch. If you're on smooth and hard stuff all the time you'll want harder tyres for speed.
There's such a broad window it's no possible for someone to tell you what's right unless they're out watching you.

For bimbling around on part gravel / part tarmac commute, 35psi. For racing on muddy off camber courses, about 25psi.

Tubeless setup (Crest rims and regular CX tyres) and a skinny 5ft7 rider here.

Too many variables to say a precise PSI, but I highly recommend going tubeless and dropping a few psi if you want some grip on off camber muddy CX courses.

Can't believe some of the PSIs above! I guess that is the price of running tubes.

30-60psi. 60 was good enough for the three peaks and any rocky stuff. 30 if I'm racing as grip normally becomes very important.

35 - Maxxis Raze on Stans Iron Cross.

I think a tubeless kit will be going on in the near future, first ride = first thorn puncture 🙁

50-60 psi, did the 3 peaks, does the road, does the off road.

It's less the price of running tubes, more about setting things up to do what you want them to do. Bimbling isn't what my cross bike is for, and off camber courses are a special case. If I'm out for 30-40-50 miles, I'm not fannying about with spongy soft tyres.

my 35 psi raze run pretty well on the road, I think it is the central knob pattern, makes it run quite narrow on the road.

Just been over Baildon Moor/Buck Woods on mine, 60psi. Felt about right.

30psi for racing on clincher tyres, but more for 3 peaks (50-60)

Some people must have no teeth left with the pressures above! 🙂

Vdubber - if your riding on grass or a firetrack lower is fine but if your riding on rocky more technical stuff you need higher pressures or you would be getting pinch flats every 2 feet.

I've found a reliable (so far) tyre/tube/puncture mix which was to buy the lightest, fastest tyres I could (won't be riding it in the mud all that much) and put a Panaracer Kevlar tyre liner between tyre and tube. I'm running circa 80 psi on my commute, and 50ish for playing. I'm pretty new to this myself though, so don't really know what I'm talking about.

I just bought some cheap shwalbe cx pro's , which state a max pressure of 65 psi , I stick 75/80psi in at the moment. 🙂
Tubes btw.
Low pressures are more pleasant on rooty off road but I don't want to wallow about on the road either.

35/40 psi for most stuff, lower on grassy fields. Happy at that pressure on the road too. Tubeless Vittoria XGs & Open Pros.

Maxxis Raze here, I'm a little heavier than you. They said 75psi max, so I tried 65 to start and have worked down from there. 50ish seems good for all round use, and I adjust up or down depending on the terrain. Tempted by tubeless for off road.

I just bought some cheap shwalbe cx pro's , which state a max pressure of 65 psi