Patent ID: 7077181
Filing Date: 2006-07-18
Classification: B60C,Y10T

Abstract:
1. A pneumatic tire comprising: a tread portion having tread edges, the tread portion provided with shoulder blocks in a row along each said tread edge, said shoulder blocks in a row divided by a circumferential groove and first shoulder grooves and second shoulder grooves, said first shoulder grooves and second shoulder grooves alternating in the tire circumferential direction and each extending from the circumferential groove to the tread edge, wherein a circumferential width (WLo) of the first shoulder groove at the tread edge is larger than a circumferential width (WSo) of the second shoulder groove at the tread edge, the ratio (WLo/WSo) of said circumferential width (WLo) to said circumferential width (WSo) is larger than a ratio (WLi/WSi) of a circumferential width (WLi) of the first shoulder groove to a circumferential width (WSi) of the second shoulder groove, each measured at the circumferential groove, the width (WLo) is larger than the width (WLi), the width (WSo) is larger than the width (WSi), and the width (WLi) and the width (WSi) are each in a range of from 4.0 to 12.0% of a tread width (TW).