| 摘要 |
A pneumatic tyre which in its standard state fitted to a rim has a contour (Y) of the tyre side surface which has a triangular portion (10) projecting outside from a norm arc (Ro), which is an arc passing through a maximum width point P1 of the tyre and tangentially contacting the flange, and a portion (11) recessing from the norm arc (Ro). The height (h1) of the maximum projecting point (QA) of the triangular projecting portion (10) from a bead base line (BL) is 0.85 to 1.15 times the height (hO) of the end of a carcass folded portion (6b). The height (h2) of a maximum recessing point (QB) of the recessing portion (11) is smaller than the height (h1), and is 0.30 to 0.90 times the height (h0). A maximum boss distance (q1) from the norm arc (Ro) and the maximum recess distance (q2) from the norm arc (Ro) are respectively 0.001 to 0.040 times the tyre cross section width (W). <IMAGE> |
