Summary:
- This article discusses the development of a new type of winter tire by the Finnish company Nokian Tires.
- The Nokian Hakkapeliitta tire has retractable studs that can be extended or retracted depending on the driving conditions, allowing for improved traction on icy and snowy roads.
- The article explains how the retractable stud technology works and how it can help drivers navigate safely in harsh winter weather.