WD40은 자전거 체인 청소에 사용해도 된다자전거저장소Переглядів 202 тис. 2 роки тому
This video explores the common misconception that WD40 damages bicycle chains. The presenter investigates the origins of this belief and examines the actual properties of WD40, ultimately concluding that it is not a suitable lubricant for bicycle chains but can be used for other maintenance purposes.