To provide a two-wheeled vehicle tire which achieves both of straight line stability and turnability.SOLUTION: A two-wheeled vehicle tire includes a tread part 2, a pair of side wall parts 3, a pair of bead parts 4, and a carcass 6. The tread part 2 includes a ground plane 2s, and a tread reinforcement layer 9. The tread reinforcement layer 9 includes a belt layer 7, and a band layer 8. The belt layer 7 includes a first belt ply 11, and a second belt ply 12. The band layer 8 includes at least one band cord which spirally wound in a tire circumferential direction. A deployment width of the band layer 8 is smaller than a deployment width of the belt layer 7. On a tire meridian cross section in a state that the two-wheeled vehicle tire is attached to a normal rim and is charged with an internal pressure of 10 kPa, a curvature radius Rc of the ground plane 2s in a crown area 21 passing through a tire equator C is less than 95% of a tire sectional width. A curvature radius Rb of the ground plane 2s in a shoulder area 22 on a tire axial direction outer side with respect to one end in a tire axial direction of the band layer 8 is larger than the curvature radius Rc.SELECTED DRAWING: Figure 1

    【課題】直進安定性及び旋回性能を両立させた二輪車用タイヤを提供する。【解決手段】二輪車用タイヤである。トレッド部2と、一対のサイドウォール部3と、一対のビード部4と、カーカス6とを含む。トレッド部2は、接地面2sと、トレッド補強層9とを含む。トレッド補強層9は、ベルト層7と、バンド層8とを含む。ベルト層7は、第1ベルトプライ11と、第2ベルトプライ12とを含む。バンド層8は、タイヤ周方向に螺旋状に巻回された少なくとも1本のバンドコードを含む。バンド層8の展開幅は、ベルト層7の展開幅よりも小さい。二輪車用タイヤが正規リムに装着され、かつ、10kPaの内圧が充填された状態のタイヤ子午線断面において、タイヤ赤道Cを通るクラウン領域21での接地面2sの曲率半径Rcは、タイヤ断面幅の95%未満である。バンド層8のタイヤ軸方向の一端よりもタイヤ軸方向外側のショルダー領域22の接地面2sの曲率半径Rbは、前記曲率半径Rcよりも大きい。【選択図】図1


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    Title :

    TWO-WHEELED VEHICLE TIRE


    Additional title:

    二輪車用タイヤ


    Contributors:

    Publication date :

    2024-07-23


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60C VEHICLE TYRES , Fahrzeugreifen



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