{
  "$type": "site.standard.document",
  "description": "It is an object of the present invention to provide a motorcycle tire with improved peeling resistance on the interface between a center part and a shoulder part of a tread part. Provided is a motorcycle tire comprising a tread part, the tread part comprising a center part having a tire equator…",
  "path": "/patents/1396094",
  "publishedAt": "2025-07-09T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60C1/0016",
    "SUMITOMO RUBBER IND [JP]"
  ],
  "textContent": "It is an object of the present invention to provide a motorcycle tire with improved peeling resistance on the interface between a center part and a shoulder part of a tread part. Provided is a motorcycle tire comprising a tread part, the tread part comprising a center part having a tire equator, and a pair of shoulder parts having tread grounding ends, wherein a rubber composition constituting the center part comprises a filler (C), the filler (C) comprising silica, and a ratio of silica in the filler (C) is greater than 50% by mass, wherein a rubber composition constituting the shoulder parts comprises a filler (S), the filler (S) comprising carbon black, and a ratio of carbon black in the filler (S) is greater than 50% by mass, and wherein, when a loss tangent at 70°C of the rubber composition constituting the center part is defined as 70°C tan δ(c), a complex elastic modulus at 0°C of the rubber composition constituting the center part is defined as 0°CE∗(c), a loss tangent at 70°C of the rubber composition constituting the shoulder parts is defined as 70°C tan δ(s), and a complex elastic modulus at 0°C of the rubber composition constituting the shoulder parts is defined as 0°CE∗(s), 70°C tan δ(c) and 70°C tan δ(s) satisfy the following inequality (1), and 0°CE∗(c) and 0°CE∗(s) satisfy the following inequality (2). 1.30",
  "title": "MOTORCYCLE TIRE"
}