For those of you who don't know....your one rep max is a way of determining your maximum strength for a particular exercise. You can perform a one rep max test for any exercise but generally people use it for Bench Pressing.
Always use a spotter if you try this. Unless of course you have a Smith Machine to be the spotter for you .....and make sure you warm up. Personally I would only suggest trying this if you are very experienced in the gym.
My one rep max currently stands at 187lbs (85kg). I have a competition going with my work colleagues at the moment. The winner is the person who can increase their one rep max the most over a one month period.
Post up your one rep max people!!