also: スタットレスタイヤ
noun
studless winter tire
A winter tire that does not use metal studs; common in Japan where studded tires are restricted.
冬になる前にスタッドレスタイヤに交換した。
I switched to studless winter tires before winter came.
このスタッドレスタイヤは氷の上でもよく止まる。
These studless winter tires stop well even on ice.
Variant with interpunct; less common but still seen.
From English 'studless tire', referring to a tire without metal studs.