In a small bowl, mix sour cream, salsa, lime juice, chili powder, and cumin to make the sauce.
Warm the tortillas slightly to make them easier to roll.
Evenly layer each tortilla with grilled chicken slices, lettuce, cheese, corn, black beans, tomatoes, and red onion.
Drizzle the prepared sauce over the filling.
Fold in the sides and roll up the tortillas tightly to form wraps.
Slice in half if desired and serve immediately.