| 摘要 |
PROBLEM TO BE SOLVED: To improve steering stability while restraining lowering of cutting resistance and riding comfort to the minimum. SOLUTION: A carcass 6 is constituted of an inner carcass ply 9i arranged on the extreme inside and one or two pieces of outer carcass plies 9o arranged on the outside of it. A carcass cord of the outer carcass ply 9o is made larger than 0.4 time of intermediate elongation el of the carcass cord of the inner carcass ply 9i in its intermediate elongation e2 and larger than 1.0 time of cord thickness D1 of the carcass cord of the inner carcass ply 9i and smaller than 1.5 times of it and its cord twisting number T2 is made larger than 0.75 time of the cord twisting number T1 of the carcass cord of the inner carcass ply 9i and smaller than 1.0 time of it. COPYRIGHT: (C)2007,JPO&INPIT
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