Patent ID: 7926795

Claim:
A front fork interposed between a front wheel axis and a vehicle body of a motorcycle, comprising: a damper which generates a damping force according to elongation and contraction thereof, the damper having a damper cylinder; a guide sleeve fixed coaxially in the damper cylinder; a free piston fitted between the guide sleeve and the damper cylinder, the free piston having an inner circumference sliding on the outer circumference of the guide sleeve and an outer circumference that slides on the inner circumference of the damper cylinder; an oil reservoir delimited by the free piston in the damper cylinder for storing working oil, the free piston being arranged to slide in the damper cylinder in a direction to expand the reservoir when the damper contracts; an auxiliary reservoir provided on the outside of the damper cylinder; a flow path formed through the guide sleeve and connected to the auxiliary reservoir; and a lateral through-hole penetrating a wall of the guide sleeve and connected to the flow path, the lateral through-hole being arranged to be opened onto the reservoir when the free piston slides beyond a predetermined distance in the direction to enlarge the reservoir.