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Questions about tubeless pressures

Old 11-04-20, 02:17 AM
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Amt0571
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Questions about tubeless pressures

Everybody tells me one of the advantages of tubeless is that you can run lowest pressures without pinch flat risk. However, I'm already running my Nobby Nic 29x2.35 at the minimum pressure Schwalbe reccomends (1.6 bar), and so far I've had zero flats in 1500km.

I understand that people are running tubeless at lower pressures than ones specified by the tire? or maybe people weigh more than my 75kg?
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Old 11-04-20, 02:31 AM
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You’re probably just not trying to get flats hard enough.
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Old 11-04-20, 09:01 AM
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So what's your question?
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Old 11-04-20, 09:28 AM
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Don't change what is working for you.
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Old 11-04-20, 09:38 AM
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Originally Posted by prj71 View Post
So what's your question?
I'm asking if people ride at lower pressures than specified by the manufacturer as I seem far from suffering pinch flat at minimum recommended pressure, even when maxing the fork on a drop or hitting a rock garden at more than 40kph.

I was considering going tubeless, but since I'm already at the minimum recommended pressure, I'm not sure about the benefits.
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Old 11-04-20, 11:08 AM
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Originally Posted by Amt0571 View Post
I'm asking if people ride at lower pressures than specified by the manufacturer as I seem far from suffering pinch flat at minimum recommended pressure, even when maxing the fork on a drop or hitting a rock garden at more than 40kph.

I was considering going tubeless, but since I'm already at the minimum recommended pressure, I'm not sure about the benefits.
Do you really think that the "minimum recommended pressure" is the same for someone who weighs 100 pounds, and someone at 300 pounds?

Proper pressure depends upon:

Rider weight
Tire size
Rim width
Riding style (aggressiveness)
tubed or tubeless
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Old 11-04-20, 11:09 AM
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Originally Posted by Amt0571 View Post
I'm asking if people ride at lower pressures than specified by the manufacturer as I seem far from suffering pinch flat at minimum recommended pressure, even when maxing the fork on a drop or hitting a rock garden at more than 40kph.

I was considering going tubeless, but since I'm already at the minimum recommended pressure, I'm not sure about the benefits.
Plenty of people run below the minimum pressure when tubeless, Schwalbe actually states that the minimum pressure on applies with tubes. If you're a lighter rider, the optimum pressure is likely below the minimum listed on the tire. Tubeless prevents pinch flats, but it doesn't prevent damage from rim strikes, so it's not clear if you could go much lower without risking rims.
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Old 11-04-20, 08:19 PM
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I’m 220 lbs and run my 29’er Nobby Nics at 22 psi front, 25 rear, tubeless. Have had no pinch flats (or any flats) and no rim strikes. I’m not jumping this bike. I just experimented on a bunch of rides (using a digital gauge) and went to 20, then up to high 20’, finally settled on these numbers based on comfort and handling. This is easily 10-15 psi lower than what I ran on 26” x 2.2 tires.
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Old 11-05-20, 05:43 AM
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Take continental tires. On their website I can find nothing about tubeless psi recommendations.
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Old 11-05-20, 10:24 AM
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Originally Posted by Amt0571 View Post
I'm asking if people ride at lower pressures than specified by the manufacturer as I seem far from suffering pinch flat at minimum recommended pressure, even when maxing the fork on a drop or hitting a rock garden at more than 40kph.

I was considering going tubeless, but since I'm already at the minimum recommended pressure, I'm not sure about the benefits.
The benefits of going tubeless relatively have little to do with pinch flats.

https://austin.mellowjohnnys.com/the...going-tubeless

https://reviews.mtbr.com/5-best-reas...tubeless-tires
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Old 11-05-20, 11:12 AM
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Originally Posted by prj71 View Post
The benefits of going tubeless relatively have little to do with pinch flats.

https://austin.mellowjohnnys.com/the...going-tubeless

https://reviews.mtbr.com/5-best-reas...tubeless-tires
I disagree.

One of the main benefits of going tubeless is the additional traction and lower rolling resistance.Those advantages are directly related to being able to run lower pressures, pressures at which pinch flats are common.
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