Shock absorber for bicycle, comprising locking element for opening and closing connecting duct between main and auxiliary chamber

摘要

The system, comprising a housing (2) accommodating a main (10) and an auxiliary chamber (11) and fitted with two ring-shaped joint elements (21, 51), is provided with an axially moving element (5) attached to a main piston (4). The piston (4) is positioned between the main chamber (10) and the auxiliary chamber (11), both connected with several fluid ducts. A locking element (7) closes or opens one of the auxiliary ducts at least partly when lifted or lowered to a particular height.