With access to a workshop and some scrap metal, making your own tire spikes, or caltrops, can be quite easy.
Subscribe: http://bit.ly/NatGeoSubscribe
About National Geographic:
National Geographic is the world’s premium destination for science, exploration, and adventure. Through their world-class scientists, photographers, journalists, and filmmakers, Nat Geo gets you closer to the stories that matter and past the edge of what’s possible.
Get More National Geographic:
Official Site: http://bit.ly/NatGeoOfficialSite
Facebook: http://bit.ly/FBNatGeo
Twitter: http://bit.ly/NatGeoTwitter
Instagram: http://bit.ly/NatGeoInsta
D.I.Y. Prep: Tire Spikes | Doomsday Preppers
National Geographic
https://www.youtube.com/natgeo
View original video here
