Patent ID: 8215438

Claim:
A motorcycle comprising: a vehicle body frame; an engine carried on the vehicle body frame; a pivot shaft supported on at least one of the vehicle body frame and the engine; a swing arm swingably supported on the pivot shaft; a rear wheel supported on a rear end portion of the swing arm; a gear case provided on a side portion with respect to the rear wheel; a drive shaft section provided between an output power shaft of the engine and the gear case to transmit output power of the engine to the rear wheel, the drive shaft section comprising: a first drive shaft connected to the output power shaft through a first universal coupling; and a second drive shaft disposed coaxially with the first drive shaft and connected to the first drive shaft through a spline portion to be movable in an axial direction with respect to the first drive shaft; and a bearing section to restrain relative movement of the first drive shaft and the second drive shaft along a diametrical direction, the bearing section being interposed between an inner circumferential face of one of the first drive shaft and the second drive shaft and an outer circumferential face of another of the first drive shaft and the second drive shaft, wherein the bearing section comprises: a first bearing provided on the first drive shaft side with respect to the spline portion; and a second bearing provided on the second drive shaft side with respect to the spline portion.