The letters “BSW” discovered on a tire sidewall point out that it has a black sidewall. This designation merely specifies the colour therapy utilized to the tire’s facet. For instance, a tire labeled “BSW” could have black rubber seen on its facet, versus having white lettering (OWL) or being solely white-walled.
Understanding this code helps customers perceive a tire’s aesthetic look earlier than buy. This specification is vital as a result of look can affect a car’s total styling. Traditionally, sidewall designs have been a key factor in car personalization and expression, with varied therapies signifying completely different eras or types of motoring.