Motorcycle tyre
AssigneeSumitomo Rubber Industries, Ltd.
InventorsChihiro Tokiwa, Shuji Kobori
Life of this patent
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Abstract
A motorcycle tyre includes a tread portion, a pair of bead portions, a toroidal carcass extending between the pair of bead portions, and a band layer disposed outward in a tyre radial direction of the carcass and inside the tread portion. The band layer includes a band ply having one or more steel cords spirally wound in a tyre circumferential direction. The tyre has a parameter (A) in which a load index LI (kg) of the tyre is divided by a bending/compression stiffness ratio that is obtained by dividing a bending stiffness (g·cm) of the steel cords by a compression stiffness (N/mm) of the steel cords being in a range of 1500 to 6000.
Claims16
A motorcycle tyre comprising:
- a tread portion;
- a pair of bead portions;
- a toroidal carcass extending between the pair of bead portions;
- and
- a band layer disposed outward in a tyre radial direction of the carcass and inside the tread portion, the band layer comprising a band ply having one or more steel cords spirally wound in a tyre circumferential direction, wherein
- the tyre satisfies a parameter (A) in which a load index LI (kg) of the tyre is divided by a bending/compression stiffness ratio that is obtained by dividing a bending stiffness (g cm) of the steel cords which is in a range of 16 to 50 g cm by a compression stiffness (N/mm) of the steel cords, wherein the parameter (A) is being in a range of 1500 to 6000.
Dependencies are inferred from the claim text.