Tyre

A tyre comprising a tread portion, wherein

• the tread portion is provided with a plurality of inclined grooves inclined with respect to a tyre circumferential direction,
• each of the inclined grooves consists of a first portion arranged on a crown region side, a second portion arranged on a shoulder region side, and a third portion connecting the first portion and the second portion,
• the first portion has a groove width gradually decreasing from a lengthwise center hereof to both ends thereof,
• the second portion has a groove width gradually decreasing from a lengthwise center thereof to both ends thereof,
• the third portion extends linearly over an entire length thereof at a constant groove width in a ground contacting surface of the tread portion,
• the constant groove width of the third portion is smaller than the groove width of the whole first portion except both ends thereof and the whole second portion except both ends thereof,
• the third portion includes an outer portion arranged on the ground contacting surface side and an inner portion arranged radially inside the outer portion,
• the inner portion has a groove width larger than the outer portion,
• the inclined grooves include at least one first inclined groove and at least one second inclined groove having a length smaller than the first inclined groove, and
• the first portion of the first inclined groove is inclined so that an angle thereof with respect to the tyre circumferential direction increases axially outwardly.