| 摘要 |
<p>The present invention provides a pneumatic tire for a motorcycle in which an electrically conductive layer made of an electrically conductive rubber can be reliably brought into contact with the road surface both during a straight travel for which motorcycles are most frequently used and in a tilted and stopping position of the motorcycle, and input forces into the electrically conductive layer can be suppressed at the time of tire rotation with load during the straight travel of the motorcycle to enhance wear resistance of the electrically conductive layer and to effectively remove the possibility of detachment. The pneumatic tire is formed by a single-layer structure, and comprises a tread portion 1 including a tread rubber 6 and forming a road-contacting surface 7; a pair of side wall portions 2 each extending radially inward from a respective side portion of the tread portion 1; and bead portions 3 extending radially inward from each of the side wall portions. An electrically conductive layer 8 made of a rubber having a resistivity of 1 × 10 6 © or less is provided in the central area of the road-contacting surface 7 at a position spaced from a tire equatorial plane C throughout the thickness of the tread rubber 6, and tread rubber portions other than the electrically conductive layer 8 has a resistivity of 1 × 10 8 © or more.</p> |
