The tri-tip roast is a triangular section of the sirloin primal and comes from the point where the sirloin meets the round and flank primal.
The tri-tip is an excellent steak for several reasons. First, it is far less expensive than other equally flavorful steaks. The tri-tip is full of flavor because of excellent marbling and very tender as long as you don't overcook it. If you are going to take this steak beyond medium.