To provide a two-wheeled automobile tire with improved gripping performance during cornering after continuation of a long straight road.SOLUTION: A two-wheeled automobile tire has a tread part on which a tread rubber, which is divided into at least three parts in a tire width direction, is arranged. The tread rubber comprises a center rubber arranged on a midship part in the tire width direction, and a shoulder rubber arranged on both sides of the center rubber in the tire width direction. Both of the center rubber and the shoulder rubber have the content of silica of 80 parts by mass or more to 100 parts by mass of a rubber component. The content (Sc) of silica of the center rubber and the content (Ss) of silica of the shoulder rubber satisfy the following formula (1), the content (Pc) of a plasticizer of the center rubber and the content (Ps) of a plasticizer of the shoulder rubber satisfy the following formula (2), and the negative rate (Nc) of the center rubber and the negative rate (Ns) of the shoulder rubber satisfy the following formula (3): (1) Sc>Ss, (2) PcNs.SELECTED DRAWING: None

    【課題】直線道路が続いた後のコーナリング時のグリップ性を改善した二輪自動車用タイヤを提供する。【解決手段】タイヤ幅方向に少なくとも3分割されたトレッドゴムが配されたトレッド部を有する二輪自動車用タイヤであって、前記トレッドゴムは、タイヤ幅方向の中央部に配されたセンターゴムと、前記センターゴムのタイヤ幅方向の両側に配されたショルダーゴムとを備え、前記センターゴム及び前記ショルダーゴムは、共に、ゴム成分100質量部に対するシリカの含有量が80質量部以上であり、前記センターゴムのシリカの含有量(Sc)、前記ショルダーゴムのシリカの含有量(Ss)が下記式(1)を満たし、前記センターゴムの可塑剤の含有量(Pc)、前記ショルダーゴムの可塑剤の含有量(Ps)が下記式(2)を満たし、前記センターゴムのネガティブ率(Nc)、前記ショルダーゴムのネガティブ率(Ns)が下記式(3)を満たす二輪自動車用タイヤに関する。(1)Sc>Ss(2)Pc<Ps(3)Nc>Ns【選択図】なし


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    Title :

    TWO-WHEELED AUTOMOBILE TIRE


    Additional title:

    二輪自動車用タイヤ


    Contributors:
    IGAI TAKUMA (author)

    Publication date :

    2022-10-03


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60C VEHICLE TYRES , Fahrzeugreifen / C08K Verwendung von anorganischen oder nichtmakromolekularen organischen Stoffen als Zusatzstoffe , USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS / C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS , Massen auf Basis makromolekularer Verbindungen



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