| 摘要 |
PROBLEM TO BE SOLVED: To remarkably improve off-road travel performance by increasing driving force and turning force in a reconciled manner. SOLUTION: Block rows R0 comprise blocks B0 divided by slant longitudinal grooves 10 and slant lateral grooves 20. An angleαof the slant longitudinal grooves 10 to a tire circumference line is 10 deg. to 45 deg., and an angleβof the slant lateral grooves 20 to a tire axis line is 10 deg. to 45 deg.. The slant longitudinal grooves 10 and the slant lateral grooves 20 slant in a direction of expansion along a tire rotation direction, and the sumα+βof the angles is in a range of 20 deg. to 55 deg.. |
