Latex tubes: Pressure for longer rides

Only thing you gotta worry about is pinch flats. Last week while cornering in a race in the middle
Of the apex got a snakebite. Must have been going too fast in the corner because vittoria latex tube popped. I’d be careful running low pressure on latex tubes if you’re cornering aggressively. I’m straight done with them now. I’m lucky to have stayed up during the blow out and moving to tubeless.

Does it have to do with speed? Or do you have rim brakes?

I regularly go 40-50kmh in tight curves on descents. :face_with_spiral_eyes:

That’s a good question. I can link you to a short video if you’d like to see.

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Oh and it was on rimbrakes.
Bontranger Aeolus xxx2
internal width 21mm
With Vitoria latex tube
Continental gp5k 28mm
At 65psi rear

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But that shouldn‘t be a problem with disc brakes, am I right?

I mean the tube shouldn‘t be stressed any different than usual.

I’m thinking the tire and wheel pinched the tube. Maybe the angle was too severe / psi too low / too much power (lol)

That’s why I’m moving towards tubeless. I can run lower pressure and not worry about the tube ever pinching at speed in corner.

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Shouldn’t be any different for disc. I’d just always be careful with low psi.

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No, latex tubes are not recommended for use in carbon clinchers because of heat problems from the brake track.

There is no such problem for disc brakes.

There is certainly no problem with cornering hard at appropriate pressures at high speed, you’d have to be radically low on pressure to pinch puncture without hitting a significant pothole. Latex is much harder to pinch puncture than butyl tubes.

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That makes sense. I wasn’t braking much the entire race. So gets probably didn’t play a factor in my snakebite.

Here’s a link to my strava Activity. If you wanna see the blow out from the tube I was talking about.

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+1 on this. The urethane tubes perform very similarly to latex but hold air much better and are more durable. They aren’t cheap but well worth it. Tubolito, Pirelli SmarTube, and Schwalbe Aerothan all good options. Tubolito even hasone with some sort of guarantee if you get a flat.


Trying not to make a new thread: what’s the bottom end of pressure people have used latex on? For example, I have a mostly road ride with a 4.5isb mile section of gravel climbing. I’m running my road bike with GP5000s and Vittoria latex tubes at 80 psi per Silca. Could I get away with 55ish?

lt’ll depend a lot on you. I can get away with butyl road tubes around there, its the border of feeling slugglish (whether that’s psychological or not though) but other folk will pinch and its a straight no. Add in the likely extra bumping over gravel I think pinching would be more likely again. Until you try it though, you’ll never know.

It’s not like latex requires more or less pressure than butyl. It just depends on your tire width and your weight. 55psi sounds low though unless maybe you are riding 32mm tires.

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165 lbs - 28mm tires - poly tubes
I can go as low as 65lbs anything lower and I will get pinch flats if I hit a cattle guard at speed.

I run 28mm Conti GP5000s with latex at 65 psi front, 70 psi rear. Never have pinch flatted with latex.

Silca calculator recommends 73/75 psi but the lower tire pressures seem fine to me.

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Thanks for the responses–I think I got my tubeless setup sorted out, so it may be a moot point.

For reference, I’m 168-173 lbs, bike is 15.4 lbs. I usually use a total system weight of 190 for Silca TPC. Running GP5000s in 28s.