this post was submitted on 31 Jan 2025
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We're not talking about a slow leak, were talking about putting a pebble (or lentil) into the valve cap and screwing it on. That pushes down on the valve, opening it up. I've personally witnessed that at a protest, being done to some idiot who was honking and insulting people walking by. A group of people walked up to his car and did exactly that, by the time police where interviewing him a few minutes later his tyres where noticably starting to flatten.
Here's a video demonstrating the process: https://youtube.com/watch?v=K0fq_kJHIWw
What you’re saying produces a slow leak.
Why lie that it deflates in minutes? Go do it to your tire, a pebble that fits in, can only produce a slow leak. Now removing the entire valve stem core and removing the cap, that’ll deflate it in about 10-15 minutes. That’s still vastly longer than the claimed “minutes”.
Post a video, prove it dude. So removing the core and cap takes over 10 minutes, but somehow magically a pebble reduces that to minutes? Prove it dude, your anecdotal evidence is clearly a made up lie.
I'll admit I've mostly been mindlessly scrolling this thread to this point, so I'm not 100% sure what others have said, but removing the valve stem core will deflate a tire in seconds. You might want to unscrew slowly, to avoid the core launching across the parking lot as the air pressure behind it will likely send it flying, but once it's removed a tire should be completely flat in 15 seconds or less.
https://youtu.be/0E-z3DTdpKU?si=lyUke-C2csZ2diUv
It’s not a few minutes, why the obvious lie?
Anyone who has actually tried this know it’s not that fast.
Yeah, the speed of the rock/bb in the cap will vary a lot depending on how far it depresses the valve stem core, and the tightness of the thread on the cap. Minutes seems absolutely unrealistic though; at the rate of the video you shared that's probably a good 6-8 hours. I'm sure with some optimization (larger "rock" to press the valve in further and a maybe some cuts in the the thread to allow faster release of air), you could get that down to the hour or two range, but you'd also risk someone finding it easily as the noise of escaping air would be quite a bit louder.