To provide a radial tire with excellent turning performance, making ground-contact pressure distribution and ground-contact shape proper and stabilizing behavior of the tire near a cornering limit point.
The radial tire is provided with a radial carcass 4 comprising one sheet or more of carcass ply; and a belt 5 comprising two layers of steel belt layers 5a, 5b arranged on an outer periphery side of a crown part of the radial carcass 4. A ratio of a steel code amount per unit width of the steel belt layer 5a of first layer and the steel belt layer 5b of second layer (embedding number of steel code×steel code cross section) is 100:85-85:100 and a ratio of volume fraction of the steel code (cross section of steel code/whole cross section of steel code and coating rubber) is 100:85-85:100. Flexural rigidity of any one of the steel belt layer is lower than flexural rigidity of the other steel belt layer.
JPH0478602A | 1992-03-12 | |||
JPH08164704A | 1996-06-25 | |||
JP2001001717A | 2001-01-09 |