When you are mounted, your opponent is vulnerable to being swept. Your hips are very powerful and when you bridge and immobilize one side of your opponent body, it’s not to difficult to sweep them in that direction.

Gi.
You are mounted. Your opponent is setting up for some type of collar choke. They have one grip across your lapel.

1. Grab the back of their elbow on their gripping arm. And pull it out away from your neck. (They are gripping your left collar, reaching across your body with their left hand. Grab inside their left elbow with your left hand and pull it out away from you.)

2.Grab the cloth of their left shoulder with your right hand.

3.Trap their left foot against your hip by posting your right heel on the other side of their foot, sandwiching it between your right foot and your hip.

4. Bridge up into them on your right shoulder as you turn your head and look over your right shoulder to the place you are trying to throw them.

5. Roll into the bridge and land on top, in their guard.

No Gi.
(more simple, less grabbing) You are mounted. Your opponent is on top of you.

IF they have an under hook on one side, THEN

1. Clamp down on that arm and wing lock it.

2.Trap their foot against your hip by posting your heel on that side, sandwiching their foot between your foot and your hip.

3. Bridge up into them on that side as you turn your head and look over your shoulder to the place you are trying to throw them.

IF they DON’T have an under hook, THEN

1. Underhook their closest arm and try to flatten it onto your chest.

Go to step 2 and 3 above.

* it is better for you to have the underhook. If they have the under hook, you are vulnerable to the head arm choke if they are Zoran strong.