PNEUMATIC TIRE

A pneumatic tire comprises a tread portion provided with main grooves extending continuously in the tire circumferential direction. The main grooves include an outboard shoulder main groove and an outboard crown main groove between which an outboard middle land region is defined. The outboard middle land region is provided with outboard middle transverse grooves each comprising a shallow groove section and a deep groove section. The outboard middle transverse grooves include: first outboard middle transverse grooves wherein their deep groove sections are is disposed on the outboard shoulder main groove side and their shallow groove sections are disposed on the outboard crown main groove side; and second outboard middle transverse grooves wherein their deep groove sections are disposed on the outboard crown main groove side and their shallow groove sections are disposed on the outboard shoulder main groove side. The first and second outboard middle transverse grooves arranged alternately in the tire circumferential direction.