Orange tyres that signal replacement

Photo from Yanko DesignA NOVEL concept in tyres is making waves. The Discolor Tyre shows a bright orange colour once the tyre is worn out, signaling that it needs replacement.
The safety indicator concept can help the user know when it is time for replacement to their tyres that have already roughed up the road for a total of 20,000 kilometers.
A 2012 iF Design Talents competition entry, the Discolor Tyre is conceptualised by young designers Gao Fenglin and Zhou Buyi. (RJA)