Tubeless air pressure

[T Dogg]

Im running a giant hardtail with xc2 rims tubless. Mostly single track and screwing around on picknic tables, rocks curbs etc. Im running around 30 psi, i weigh 220. Was just wondering what air pressure others are running, and in what terrain.

[triton189]

At 220 with the kind of riding you are doing on a hard tail I wouldn’t go lower than 30 for your rims sake.  I am only 190 with full suspension and run about 24 in the back and 22 in front on cross country trails.

[GJmtb]

With pack I’m around 160 lbs., riding 29×2.3, 24lbs. front and back. I’m still dialing in. Terrain around here is mostly rocky.

[Head Over Handlebars]

I weigh 215 without a pack and also ride a hardtail. Many of the trails I usually ride are pretty rocky and rooty, so I typically run around 30 psi rear and 25ish front. I also have 2.5in tires, so your mileage may vary if you’ve got skinnier tires.

[Mann]

I’m 160 on a shorter travel full suspension. Trails are hardpack or loose dirt, with more moderate rocky or root sections. I run ~37 on Kenda Nevegals. This is more recent for me; how low could these be run?

[FredCook ✓ supporter]

Mann: I’m 160 on a shorter travel full suspension. Trails are hardpack or loose dirt, with more moderate rocky or root sections. I run ~37 on Kenda Nevegals. This is more recent for me; how low could these be run?

I have Nevegal’s on my XC bike.  I run in the 30-32 range with tubes, 25-27 without tubes.  That’s with either Nevegal Pro’s or X-Pro’s.  Both the DTC (dual compound) versions.  All terrain types, and weight 170 fully loaded (160-165 without gear).

 

[Mann]

FredCook: I have Nevegal’s on my XC bike. I run in the 30-32 range with tubes, 25-27 without tubes. That’s with either Nevegal Pro’s or X-Pro’s. Both the DTC (dual compound) versions. All terrain types, and weight 170 fully loaded (160-165 without gear).

I have the UST Nevegals; they say 30-50 PSI on the tire. Is it still OK to run them lower?

[FredCook ✓ supporter]

Mann: I have the UST Nevegals; they say 30-50 PSI on the tire. Is it still OK to run them lower?

I’ve always thought the pressure stamped on tires referred to running with tubes.  Don’t quote me on that though.  I’ve not had issues with running ~5 lbs less without tubes than with them.  At least not on the Nevegal’s.  The type of riding I typically do doesn’t need low pressure, so I’ve not run as low as some riders do.

[Rob K]

I have Racing Ralph’s on my HT; trail varies between hard pack and sand with tree roots thrown in.

I weigh 175, I been riding around 20-22F / 22-24R (tubeless), few pounds more in the winter when riding the frozen tundra.  Anything less and I feel my rims hitting every rock

[mtnryder ✓ supporter]

I’m about 220 fully loaded (unfortunately) and ready to ride and I’m not super anal about my air pressure. Anywhere between 22-25 is OK up front and 25-28 in the back is acceptable. I used to be a 22/24 guy but bumped it up when I started riding more aggressively.

We have one guy in our group that is 180 and he runs 22/24 in Nobby Nics on his FS bike, another is 160 lbs and he runs 20/22 on Hans Dampfs on a FS bike, another is 145 lbs  and he runs 14/16 on a Maxxis Ardent/Aggressor set-up. I don’t know anybody running 30 psi on a tubeless let-up. Generally defeats the purpose.

[Hap Proctor ✓ supporter]

At 225 lbs.  I ride 29 psi in front and 34 in back; give or take a pound.

Anyone use the formulas:

x/7 -1  for the front and x/7 +2 for the rear,  where x = your weight.  I would guess this is a good starting point and with adjustments considering your tire width and riding style.

[Matthew Bonner]

I’m around 170, and I run 20-23 psi front and 29 in the rear. Works like a charm!

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