ウェアインジケーター

noun

wear indicator

Technical term for a visual marker on tires, brake pads, or similar parts that shows when replacement is needed due to wear.

• タイヤのウェアインジケーターが露ろ出しゅつしたら交こう換かん時じ期きです。

  When the tire's wear indicator becomes exposed, it's time to replace it.

• ブレーキパッドのウェアインジケーターが鳴なり始はじめた。

  The brake pad wear indicator has started to squeal.