Pneumatic tire including fine groove

摘要

A pneumatic tire comprises a tread portion, the tread portion comprising blocks provided with fine grooves for preventing bareness of rubber, the fine grooves having a depth of 0.2 to 0.7 mm and a width of 0.3 to 1.0 mm. The fine groove extends from the angularly narrowest corner of the block to a block edge extending substantially in the circumferential direction. The angularly narrowest corner is provided with a slope having an angle of 30 to 60 degrees to the normal direction to the tread surface.