Originally Posted by name goes here
Sledge hammer. Do your best to hit the tire as hard as you can. Hitting an actual hard object you want to smash is best - if you can get that opportunity.
Don't hit your foot.
Funny answer: Join Islam!
(Just a joke
Aye, islamic dudes are pretty darn explosive, especially in the Middle East. Joke ends here.
Just keep punching, either a hard bag, or a wall bag. Other than that you can *test* your explosiveness on a partner, just give him a chest protector, relax, and than bamm! Throw a punch at it. Repeat. The reactions of your m8 will be a good indication as to how well you are doing.
No weightlifting thou, you may punch harder, but your arms will slow to a crawl. Lots of punches to a bag, thousands a day if you are serious, a few hundred if you just wanna condition yourself.