A front suspension system for a motorcycle, including an upper fork member supported by a vehicle body frame, a lower fork member which supports a front wheel and a link mechanism connecting between the upper and lower fork members. The system includes a pivotal damper which provides a pivotal reaction force proportional to a pivoted amount thereof in operative cooperation with the link mechanism. The pivotal damper is disposed in the interior of the upper fork member to thereby attain simplification of the construction, reduction of the number of parts and improvement of the aesthetic appeal.