CX500Z, A, B 1978, 1979; CX500C, D 1979, 1980 : 135 cc in each fork leg.
CX500 C 1981, 1982 : 220 cc in each fork leg.
CX500 D 1981 : 185 cc in each fork leg.
CX500 EC (Eurosport) : 265 cc left leg and 250cc in the right leg.
All GL500, GL500D and GL500I : 210 cc in each fork leg.
CX650C : 480 cc in each fork leg.
CX650 E-D (Eurosport): 290 cc left leg and 275 cc right leg.
GL650, GL650D2-E, GL650I : 275 cc in each fork leg.