Patent ID: 8850915

Claim:
A straddle-ride type vehicle comprising: a power unit, said power unit including: a crankshaft; first and second main shafts disposed in this order from the crankshaft side; a counter shaft straddling and engaging the first and second main shafts; a crankcase rotatably supporting the crankshaft, the first and second main shafts and the counter shaft in a parallel manner; first and second clutches installed at corresponding one end portions of the main shafts and individually connecting and disconnecting the transmission of rotational power from the crankshaft to the main shafts; and a plurality of gear trains for speed-change stages, each of the plurality of gear trains being located on a corresponding one of the main shafts and the counter shaft and being selectively established by turning of a shift drum parallel to the main shafts and the counter shaft; a swing arm supporting a drive wheel at a rear portion; and a pivot shaft disposed behind the crankcase and parallel with the first and second main shafts and with the counter shaft and vertically swingably supporting a front portion of the swing arm, wherein the power unit in configured to switch the speed-change stages by changing the clutches and transmitting power to the drive wheel from an end portion of the counter shaft projecting from the crankcase, and wherein one of respective axial centers of the first and second main shafts is disposed on one side with respect to a line and the other of respective axial centers of the first and second main shafts is disposed on the other side of said line, said line connecting an axial center of the counter shaft with an axial center of the pivot shaft, as viewed in side elevation from the axial direction of the first and second main shafts and the counter shaft.