regolazioni              chiusura
                              precarico
                              regolazione pressione aria
                              ritorno
                              precarico molla
 corse                      7.5 x2.0          190mm
                              7.875 x 2.25    200mm
                              8.5    x 2.5      216mm
                              8.75  x 2.75    222mm
                              9.5    x 3.0      241mm
 peso                       375g