Provided is a studless winter tire which provides good performance on ice and
snow and good abrasion resistance, and suffers little change in
hardness and little discoloration on the tire surface. The present invention relates to a studless winter tire including a
tread formed from a rubber composition containing a predetermined amount of a
farnesene resin obtained by polymerizing
farnesene. The present invention relates to a studless winter tire including a
tread formed from a rubber composition containing a predetermined amount of at least one
myrcene resin selected from the group consisting of
myrcene polymers with a Mw of 1,000-500,000,
myrcene-butadiene copolymers with a Mw of 1,000-500,000, and myrcene-
styrene copolymers with a Mw of 1,000-150,000; and a predetermined amount of a silica with an N2SA of 40-400 m2 / g, the rubber component containing a predetermined amount of a high-cis
polybutadiene with a cis content of 95% by
mass or more.