Motorcycle radial tire with supplementary breaker ply

Details Motorcycle radial tire with supplementary breaker ply Motorcycle radial tire with supplementary breaker ply

1995-02-01

1996-06-25

Johnstone, Adrienne C.

Resilient tires and wheels

Tires, resilient

Pneumatic tire or inner tube

152526, 152534, 152536, B60C 300, B60C 908, B60C 918, B60C 920

Patent

active

055291023

ABSTRACT:
A motorcycle radial tire comprises a tread reinforced between its edges by a breaker assembly and having in its normally inflated fitted condition a camber value C/L of between 0.5 and 0.7, a reinforcing carcass of radially disposed cords extending radially inside the breaker assembly and between two bead regions and wrapped in each bead region around an annular bead core from the axial inside to the outside to form carcass ply turn-ups, and tire sidewalls between the tread edges and bead regions, the tire characterized in that the breaker assembly comprises two breaker plies each reinforced with aromatic polyamide cords oppositely inclined with respect to the circumferential direction of the tire and a supplementary ply disposed radially adjacent to the breaker plies and reinforced with nylon reinforcements laid parallel to each other and disposed at an angle in the range of 75.degree.-90.degree. to the circumferential direction of the tire.

REFERENCES:
patent: 3656533 (1972-04-01), Barassi et al.
patent: 4776378 (1988-10-01), Griffiths et al.
patent: 4790363 (1988-12-01), Ingley et al.
patent: 4986326 (1991-01-01), Watkins et al.
patent: 5339878 (1994-08-01), Takase

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