Preheat oven to 400ºF. Spray a loaf pan with nonstick spray or butter; set aside.
In a large mixing bowl whisk together the sugar, bananas, oil, and peanut butter. Once combined add the flour, baking powder, baking soda, and salt, whisk until smooth then fold in the chocolate chips.
Spoon the batter into the prepared loaf pan and bake at 400º for 5 minutes then turn the down to 375ºF and bake for another 45-50 minutes.