Tire component, and tire with such component, of a rubber composition which contains a combination of soybean oil and starch/plasticizer composite

The invention relates to a tire component, and tire having such component, of a rubber composition which contains a combination of environmentally renewable, plant-derived, soybean oil and plant-derived starch. The starch is provided as a starch/plasticizer composite. Such tire component may be, for example, a tire tread, a tire sidewall and/or tire innerliner. A tire component such as tread may be used for retreading tires.