What motor do I choose?

[Bot1]

How can you tell what motors are better than others? Is it the bigger the better. Should it have more than one gear speed? Some one help please!

[Choco_liger]

Could you explain your situation a little more, if you have a certain requirement?

There are a couple of tutorials if you haven't already read them.

http://www.societyofrobots.com/mechanics_gears.shtml

http://www.societyofrobots.com/actuators.shtml

And also there is a calculator.

http://www.societyofrobots.com/RMF_calculator.shtml

Here's a recent post about choosing a motor.

http://www.societyofrobots.com/robotforum/index.php?topic=11415.0

Most of the questions are answered there I suppose.