On films and TV you always see characters puncture a regular car tire with something like a folding knife or a swiss army knife. How hard would it be in real life to do this?

  • @woodchips or you can go to your local garage and ask to experiment on the old (bald) tires – ratchet freak May 15 '12 at 18:11
  • Interesting question although the how hard part is a bit unspecific. – Baarn May 15 '12 at 18:54
  • 9
    Just a tip: If you're going to experiment, use a fixed blade knife with a hand guard. – Chris Cudmore May 15 '12 at 19:16


This video advert shows a man easily puncturing and cutting a tire with a pocket knife.

This Mythbusters episode shows a snippet of Adam Savage puncturing a tire with a knife in the first 30 seconds. [Hat-tip: @ratchetfreak]

  • 17
    One day, the police are going to seize my computer records over some misunderstanding, and I am going to have some explaining to do about my search history. "So, tell me again why you were searching for 'tyre-slashing knifes'?" – Oddthinking May 15 '12 at 23:46
  • 3
    I don't like this answer. The only proof given is an advertisement. We all know nobody ever lies or exaggerates in ads. – Sam I Am May 17 '12 at 13:30
  • 1
    I'm skeptical. The video shows a tire not under pressure. I think a fully inflated tire would react differently. – Chris Cudmore May 17 '12 at 13:35
  • 4
    -1, somewhat circular. Uses the same type of reference material (scripted video or film) that the OP expressed skepticism about. – Paul May 18 '12 at 1:24
  • 3
    Chris: The tire is under some pressure. My intuition (Danger: Argument from intuition!) is that an inflated tire would be easier to puncture, like taut cloth is easier to cut. – Oddthinking May 18 '12 at 5:04

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .