TIRE

A tire has a tread portion provided with grooves including first oblique grooves, second oblique grooves, first shoulder longitudinal grooves, and first crown longitudinal grooves. Each first oblique groove terminates in conjunction with one of the second oblique grooves. Each second oblique groove terminates in conjunction with one of the first oblique grooves. The blocks include crown blocks, first shoulder blocks, and first middle blocks. Each block has a ground contacting surface provided with sipes. A sipe density SDc of each crown block, a sipe density SDm of each first middle block, and a sipe density SDs of each first shoulder block satisfy SDc>SDs and SDm>SDs.